In this appeal by allowance, we consider whether Excela Health waived the attorney work product doctrine or the attorney-client privilege by forwarding an email from outside counsel to its public relations and crisis management consultant, Jarrard, Phillips, Cate & Hancock. We conclude that the attorney work product doctrine is not waived by disclosure unless the alleged work product is disclosed to an adversary or disclosed in a manner which significantly increases the likelihood that an adversary or anticipated adversary will obtain it. Accordingly, we remand this matter to the trial court for fact finding and application of the newly articulated work product waiver analysis. Further, we affirm the Superior Court's finding that Excela waived the attorney-client privilege.

George R. BouSamra, M.D. (BouSamra), along with his colleague, Ehab Morcos, M.D. (Morcos), were members of Westmoreland County Cardiology (WCC), a private cardiology practice located in Westmoreland County.1 BouSamra and Morcos are interventional cardiologists, who use intravascular catheter-based techniques to treat, among other things, coronary artery disease. Interventional cardiologists utilize catheterization and angiography to measure blood flow through patients' coronary arteries and evaluate the presence of blockages. If a blockage is severe enough, interventional cardiologists implant a stent --a device which increases the blood flow through the affected artery by widening the narrowed section.

Westmoreland Regional Hospital is operated by Excela Health (Excela), a corporation. As of 2006, approximately 90% of the interventional cardiology procedures at Westmoreland Regional Hospital were performed by WCC. As a result, most of the income Excela realized from interventional cardiology procedures at Westmoreland Regional Hospital stemmed from WCC's procedures.

*970In 2007, Excela acquired Latrobe Cardiology (Latrobe). Although Latrobe was a cardiology practice, it did not employ interventional cardiologists. Instead, Latrobe referred its patients requiring interventional cardiac procedures to other cardiologist groups, including WCC. Because WCC and Latrobe competed for patients, some animosity existed between the practices.

In 2008, Dr. Robert N. Staffen (Staffen), a member of Latrobe, complained to Excela that BouSamra and Morcos were not properly referring back to Latrobe those patients whom Latrobe had referred to WCC for interventional cardiology procedures. Additionally, some Latrobe physicians began accusing WCC doctors, particularly BouSamra and Morcos, of performing improper and medically unnecessary stenting. In light of these accusations, one of the principals of WCC, one of the cardiologists from Latrobe, and the then-Chief Medical Officer of Westmoreland Regional Hospital agreed that Dr. Mahdi Al-Bassam, a skilled interventional cardiologist, would perform a review of WCC's procedures.

On April 26, 2009, Dr. Al-Bassam issued a report concluding that the accusations made against WCC were unfounded. In fact, Dr. Al-Bassam found that the interventional cardiologists demonstrated outstanding skills and judgment, and found no evidence of misuse or abuse of interventional cardiology. He further concluded that the procedures performed by WCC involved no increased complications or mortality.

In February 2010, Robert Rogalski (Rogalski) was appointed CEO of Excela, at which point he became aware of the acrimonious relationship between WCC and Latrobe. Seeking to control the market for interventional cardiology in Westmoreland County, Rogalski began negotiating with WCC intending to bring WCC into Excela's network. The negotiations were ultimately unsuccessful, and in April 2010, WCC rejected any further negotiations.

In June 2010, Excela engaged Mercer Health & Benefits, LLC (Mercer) to review whether physicians at Westmoreland Regional Hospital, including BouSamra, were performing medically unnecessary stenting. Mercer's review was based on a sampling of interventional cardiology procedures. The results of the study were critical of BouSamra's work, and concluded that he had performed medically unnecessary interventional cardiology procedures.

BouSamra received the results of the Mercer peer review on December 18, 2010. On January 11, 2011, BouSamra resigned his privileges at Westmoreland Regional Hospital, hoping to minimize negative professional repercussions resulting from the peer review study. Prior to resigning, however, BouSamra had already gained provisional privileges to perform coronary interventions at Forbes Regional Hospital, which served patients in Westmoreland County and eastern Allegheny County.

On February 9, 2011, Excela hired American Medical Foundation for Peer Review and Education, Inc., (American) to conduct a more thorough peer review focusing on interventional cardiology procedures performed specifically by BouSamra in 2010. The stated goal of the American study was to determine if any of the procedures BouSamra performed at Excela's hospital were medically unnecessary.

While Mercer was completing its peer review but prior to American beginning its peer review, Excela contracted with an outside public relations consultant, Jarrard, Phillips, Cate & Hancock (Jarrard), to assist Excela in managing the anticipated publicity stemming from the results of the peer review studies. Molly Cate (Cate)

*971was the principal at Jarrard who worked on the Excela media plan and frequently communicated with Excela through Timothy Fedele (Fedele), who was Excela's Senior Vice-President and General Counsel during the relevant events. Cate also worked with other members of Jarrard as part of the team handling Excela's media plans, including Kim Fox (Fox), Alan Taylor (Taylor), and Magi Curtis (Curtis). On February 23, 2011, American issued a final report to Excela in which it concluded that BouSamra and Morcos regularly overestimated arterial blockages and inappropriately implanted stents.

On February 25, 2011, Excela informed Cate that legal concerns prevented it from publically naming BouSamra as one of the doctors alleged to have implanted medically unnecessary stents. The next day, outside counsel sent legal advice by email to Fedele. Fedele forwarded that email to Cate and other employees at Excela. Cate subsequently forwarded that same email to Fox, Taylor, and Curtis--Jarrard employees working on Excela matters with Cate. On February 28, 2011, Excela informed Cate that, contrary to its position taken two days earlier, it was planning to publically identify BouSamra and Morcos as the cardiologists responsible for over-stenting.

On or about March 2, 2011, Excela held a press conference and publicly acknowledged the results of the peer review studies. In its press release, Excela stated that the peer review process had identified 141 patients of BouSamra and Morcos who, in the last twelve months, had received stents which may not have been medically necessary. The press conference received significant media attention the following day. See Excela Health Press Release, Excela Health Launches Medical Necessity Review of Coronary Stent Procedures , March 3, 2011.

BouSamra initiated this action by filing a complaint on March 1, 2012, seeking damages for, among other things, defamation and interference with prospective and actual contractual relations. As the matter continued through the phases of litigation, the parties disagreed as to the scope of discoverable materials. On November 18, 2014, Marvin A. Fein, Esquire, was appointed Special Master to resolve all discovery disputes. See Order of Court, Nov. 18, 2014. In anticipation of resolving the discovery problems, Appellants (referred to collectively as Excela)2 created a privilege log of materials it asserted were protected from discovery. This privilege log included the February 26, 2011 email from outside counsel to Fedele, which Fedele forwarded to Excela management-level personnel and Cate, who in turn forwarded it to other Jarrard employees. The log also included various other emails among the members of the Jarrard team. In the interest of brevity, we will refer to these documents as the "Jarrard documents," as the Superior Court did below.

BouSamra filed a motion to compel Excela to produce the Jarrard documents on April 6, 2015. Excela responded by claiming that both the attorney-client privilege and the work product doctrine applied, barring discovery of the Jarrard documents. Appellees argued, however, that both privileges were waived when Fedele forwarded outside counsel's email to Cate because Cate was a third party outside the attorney-client relationship.

*972After conducting an in camera review of the documents, Special Master Fein issued a report on May 16, 2015, wherein he recognized that "it is likely that the contents of these documents will be disclosed at some point in this proceeding." Special Master's Report at 6, May 16, 2015. Special Master Fein reasoned, however, at that point in the proceedings, Excela had not waived any privilege which would render the documents discoverable. Id. In a proposed order of court issued by Special Master Fein, he recommended that "Plaintiff's Motion for Defendants to produce correspondence dated on or about February 26, 2011, between Excela's outside counsel, inside counsel, and [Jarrard], Excela's agent, [be] denied."3 Proposed Order of Court issued May 16, 2015, ¶5.

BouSamra filed exceptions to Special Master Fein's report and proposed order on June 3, 2015, and filed a supporting brief on July 6, 2015. After reviewing the emails in camera , on October 6, 2015, the trial court sustained BouSamra's exception regarding the Jarrard documents. Memorandum and Order of Court, October 6, 2015. The trial court reasoned that communications between counsel and a third party are generally not protected by the attorney-client privilege; in fact, the court reasoned, the privilege is lost when a protected communication is shared with a third person. Id. Although the court did recognize that an exception may exist where a third party is acting as an agent of a lawyer and is facilitating the lawyer's representation, the court held that exception was inapplicable because employees of Jarrard "were not agents of defendants' counsel facilitating the representation." Id. at 1-2 (citing RESTATEMENT (THIRD) OF THE LAW GOVERNING LAWYERS § 70 (2000) ). Rather, the court reasoned, Excela retained Jarrard to assist in public relations matters. Thus, the court concluded:

It was not the role of defendants' counsel to make decisions regarding communications with the public. At the most, a lawyer will give advice to a client asking the lawyer to advise it regarding the legal issues with respect to communications with the public. The presence of Jarrard would not in any way assist counsel in giving such legal advice.

See id. at 2. Neither Special Master Fein nor the trial court addressed the applicability of the attorney work product doctrine. Excela appealed the trial court order, asserting that both the attorney-client privilege and the work product doctrine barred discovery of the Jarrard documents.

On July 19, 2017, a unanimous panel of the Superior Court affirmed. BouSamra v. Excela Health , 167 A.3d 728 (Pa. Super. 2017). In considering whether the work product doctrine applied to the Jarrard documents, the Superior Court recognized that the privilege bars discovery of materials which disclose the mental impressions, conclusions, or opinions of a party's attorney. Id. at 743 (citing Pa.R.C.P. 4003.3 ). The panel first looked to whether Excela properly raised the doctrine by delineating facts showing that the privilege had been properly invoked. Id. The Superior Court concluded that Excela failed to meet this burden because the doctrine protects the files of counsel from examination, not documents or property which belong to the client. Id. (citing Pa.R.C.P. 4003.3, Explanatory Comment-1978). The court reasoned that BouSamra was attempting to discover an email directly from the client, not the client's attorney. Id. Further, that email, *973as found by the Superior Court, is a document that belonged to Excela, not outside counsel. Id. Additionally, the panel noted that Excela did not send the documents to Jarrard to help outside counsel prepare for litigation. Id. at 744. On these bases, the Superior Court reasoned, the work product doctrine was inapplicable. Id.

Next, the court considered whether the Jarrard documents were protected by the attorney-client privilege. The court first recognized that, as a communication between outside counsel and Fedele, the email was initially protected by the attorney-client privilege. Id. at 735, n.4. Thus, the court considered whether the privilege was waived by disclosure, or whether the privilege should be extended to Jarrard, an agent of Excela, the client.

Relying on United States v. Kovel , 296 F.2d 918 (2d Cir. 1961), the Superior Court opined the attorney-client privilege may extend to a client's agent when the presence of an agent is necessary or useful to the lawyer's dissemination of legal advice. Id. at 737. The court concluded, however, that Kovel is inapposite in this case because Jarrard was not involved in outside counsel's dissemination of legal advice. Specifically, Jarrard did not assist outside counsel in providing legal advice to Excela:

That, of course, is the "legal issue" involved in the case. Outside counsel reviewed the materials sent by Mr. Fedele and outside counsel rendered advice as to their contents. Outside counsel sent his advice only to in-house counsel. Outside counsel's email does not solicit input.

Id. at 739. In fact, the Superior Court recognized that none of the Jarrard employees responded directly to outside counsel in that email chain. Id. at 739-40. Thus, based on this factual record, the court concluded that it was unnecessary for it to determine whether an agent of the client is under the umbrella of attorney-client privilege pursuant to Kovel .

Appellants filed a petition for allowance of appeal with this Court. We granted allocatur to consider two issues, which as stated by Appellants, are:

(1) Did the Superior Court commit an error of law when holding that a client waives the work-product protection of its counsel's pre-litigation e-mail by forwarding the e-mail to its public relations consultant?

(2) Did the Superior Court commit an error of law when holding that, to qualify as a privileged person within the attorney-client privilege, a third party must provide legal advice and have the lawyer or client control its work?

BouSamra v. Excela Health , 645 Pa. 340, 179 A.3d 1079 (2018) (per curiam). The application of the work product doctrine and the attorney-client privilege are questions of law over which our standard of review is de novo and our scope of review is plenary. In re Thirty-Third Statewide Investigating Grand Jury , 624 Pa. 361, 86 A.3d 204, 215 (2014).

Initially, Excela argues that the email chain should not be subject to discovery because it is protected as attorney work product. Excela's Brief at 26. Relying on several secondary sources and decisions from other courts, Excela contends that the real purpose of the work product doctrine is to protect evidence from disclosure to opposing counsel, not the outside world generally. In Excela's view, application of the work product doctrine is not waived unless work product is disclosed to the adversary or if the disclosure increases the likelihood that an adversary will discover the work product. Excela maintains that the protection should remain regardless of whether the attorney or client makes the disclosure. Id. at 30.

*974Next, Excela asserts that Rule 4003.3 does not require that documents protected by the work product doctrine be prepared in anticipation of litigation, as that requirement is not included in the text of the rule. In support, Excela relies on two cases from our intermediate courts which, it argues, both hold that the protections of Rule 4003.3 are not limited to work product produced in anticipation of litigation. See Estate of Paterno v. NCAA , 168 A.3d 187, 200 (Pa. Super. 2017) (noting "the Rule does not limit work product protections to materials prepared in anticipation [of litigation]."); Bagwell v. Pa. Dept. of Educ. , 103 A.3d 409, 416 (Pa. Cmwlth. 2014) ("The anticipation of litigation part of the work-product doctrine is not an absolute requirement[.]"). Further, Excela contends that although the words "anticipation of litigation or trial" do appear in the statute, they are used as words of inclusion rather than exclusion. Excela's Brief at 31-32.

Lastly, Excela argues that the core policy and purpose of the work product doctrine is to protect an attorney's mental impressions from disclosure to an adversary. In this case, Excela contends that the February 26, 2011 email unquestionably contains the mental impressions of the attorney. Thus, in furtherance of the purpose of rule, Excela argues that the email must be protected as work product. Id. at 33-34.

Conversely, BouSamra contends that in this case, the work product privilege either does not apply, or was waived by disclosure. First, BouSamra argues that the February 26, 2011 email is not protected by the work product doctrine because he sought to obtain the email chain from Jarrard, not Excela's counsel. Relying on the comment to the rule, BouSamra explains that documents belonging to the client are explicitly excluded from the definition of attorney work product. Thus, in this case, BouSamra argues that because he is attempting to recover documents from Jarrard and not from Excela's attorney, the documents cannot possibly be considered attorney work product. BouSamra's Brief at 26-28.

BouSamra next argues that neither Cate nor any other Jarrard employees provided insight or advice to the attorney while crafting the message. Thus, although BouSamra recognizes that Rule 4003.3 protects the work product of a party's representative,4 BouSamra alleges that the documents cannot be considered Jarrard's work product, because Jarrard did not advise the lawyer on their creation. Similarly, BouSamra contends that Jarrard cannot be construed to be an agent of Excela, because Jarrard is a separate legal entity with other clients and was hired by Excela for a specific public relations project.

Next, BouSamra contends that Excela's disclosure of the email to Jarrard increased the likelihood that he, an adversary, would obtain the document. Thus, even relying on the broadly interpreted waiver rule Excela urges us to adopt, BouSamra contends he should still be permitted to obtain the document because disclosure to Jarrard increased the likelihood that the document would be obtained by an adversary. BouSamra's Brief at 33.

Finally, BouSamra contends that Excela's suggested rule will lead to an absurd result because it would permit attorney work product to be shared with virtually anyone except an adversary without waiving *975the privilege. In BouSamra's view, such a rule is too broad, unreasonable, and unsupported by the law. Rather, BouSamra urges this Court to adopt a more practical waiver analysis, which requires reasonable measures be taken to protect an attorney's work product. BouSamra's Brief at 38-39.

In its reply brief, Excela contends that the language of Rule 4003.3 is clear in that it protects the mental impressions of attorneys along with the mental impressions of the "representative of a party ... respecting strategy or tactics." Pa.R.C.P. 4003.3. In this regard, Excela maintains that not only is the email sent by counsel privileged work product, but the commentary of Jarrard employees--acting as a representative of Excela--should be protected work product as well. Excela's Reply Brief at 7-9. Finally, Excela explains that contrary to BouSamra's framing of its position, it is not advocating that the work product doctrine can only be waived by disclosure to an adversary. Rather, Excela concedes that "widely disseminating the work product may result in work product waiver." Excela's Reply Brief at 10. Notwithstanding this position, however, Excela relies on the RESTATEMENT (THIRD) OF THE LAW GOVERNING LAWYERS , § 91 cmt. b (2000), for the proposition that application of the work product doctrine should not be deemed waived when the work product is shared with agents, representatives, or other professionals working for the client. Excela's Reply Brief at 10.

Initially, we recognize "that evidentiary privileges are not favored." Commonwealth v. Stewart , 547 Pa. 277, 690 A.2d 195, 197 (1997) (observing "[e]xceptions to the demand for every man's evidence are not lightly created nor expansively construed, for they are in derogation of the search for truth."). Courts should permit utilization of an evidentiary privilege "only to the very limited extent that ... excluding relevant evidence has a public good transcending the normally predominant principle of utilizing all rational means for ascertaining the truth." Id. (quoting In re Grand Jury Investigation , 918 F.2d 374, 383 (3d Cir. 1990) ). Additionally, unlike the attorney-client privilege, the protection flowing from the work product doctrine belongs to the attorney, not the client. Rhone-Poulenc Rorer Inc. v. Home Indemnity Co. , 32 F.3d 851, 866 (3d Cir. 1994) ; Burnham v. Cleveland Clinic , 151 Ohio St.3d 356, 89 N.E.3d 536, 541 (2016) ; see also Magnetar Tech. Corp. v. Six Flags Theme Park, Inc. , 886 F.Supp.2d 466, 479 (D. Del. 2012) ("[T]he work product protection belongs to the attorney.").

This Court has not yet articulated the proper analysis for waiver of the attorney work product doctrine in Pennsylvania. See LaValle v. Office of Gen. Counsel , 564 Pa. 482, 769 A.2d 449, 460 n.16 (2001) (noting "we decline to undertake an assessment of the appropriate waiver analysis generally applicable to the work product doctrine in Pennsylvania."). Other courts tasked with shaping a principled waiver analysis of the work product doctrine first consider the purpose of the privilege, because when the purpose is no longer being furthered, the privilege must yield to the truth seeking process. In re Chevron Corp. , 633 F.3d 153, 165 (3d Cir. 2011) ("[P]rivileges should be recognized only when necessary to achieve their respective purposes."); Fisher v. U.S. , 425 U.S. 391, 403, 96 S.Ct. 1569, 48 L.Ed.2d 39 (1976) (noting that a privilege "applies only where necessary to achieve its purpose."). Notwithstanding Justice Donohue's classification of this discussion as dicta, we find a brief review of the scope and applicability of the work product doctrine critical to discerning the full purpose of the protection, *976which in turn is a worthwhile step for developing a waiver analysis.5

The privilege emanating from the work product doctrine is codified in Pennsylvania Rule of Civil Procedure 4003.3 :

Subject to the provisions of Rules 4003.4 and 4003.5, a party may obtain discovery of any matter discoverable under Rule 4003.1 even though prepared in anticipation of litigation or trial by or for another party or by or for that other party's representative, including his or her attorney, consultant, surety, indemnitor, insurer or agent. The discovery shall not include disclosure of the mental impressions of a party's attorney or his or her conclusions, opinions, memoranda, notes or summaries, legal research or legal theories. With respect to the representative of a party other than the party's attorney, discovery shall not include disclosure of his or her mental impressions, conclusions or opinions respecting the value or merit of a claim or defense or respecting strategy or tactics.

Pa.R.C.P. 4003.3. The explanatory comment further clarifies the scope of the Rule:

The essential purpose of the Rule is to keep the files of counsel free from examination by the opponent .... Documents, otherwise subject to discovery, cannot be immunized by depositing them in the lawyer's file. The Rule is carefully drawn and means exactly what it says. It immunizes the lawyer's mental impressions, conclusions, opinions, memoranda, notes, summaries, legal research and legal theories, nothing more.

Id. (Explanatory Comment-1978). The purpose of the work product doctrine is to protect the mental impressions and processes of an attorney acting on behalf of a client, regardless of whether the work product was prepared in anticipation of litigation. Lepley v. Lycoming Cnty. Court of Common Pleas , 481 Pa. 565, 393 A.2d 306, 310 (1978) (citing United States v. Nobles , 422 U.S. 225, 238, 95 S.Ct. 2160, 45 L.Ed.2d 141 (1975) ).6 Work product protection *977"provid[es] a privileged area within which [an attorney] can analyze and prepare [a] client's case ... by enabling attorneys to prepare cases without fear that their work product will be used against their clients." Barrick v. Holy Spirit Hosp. of the Sisters of Christian Charity , 32 A.3d 800, 812 (Pa. Super. 2011), aff'd 625 Pa. 301, 91 A.3d 680 (2014) (quoting T.M. v. Elwyn, Inc. , 950 A.2d 1050, 1062 (Pa. Super. 2008) ); accord Commonwealth v. Kennedy , 583 Pa. 208, 876 A.2d 939, 948 (2005) ("[W]e agree with the proposition that the doctrine promotes the adversary system by enabling attorneys to prepare cases without fear that their work product will be used against them.") (internal citations omitted).

As is clear from the text of the rule as well as the jurisprudence surrounding the work product doctrine, confidentiality is not a cornerstone of the accompanying privilege. Pa.R.C.P. 4003.3 ; Bagwell , 103 A.3d at 417-18 (contrasting the attorney-client privilege, which flows from confidential communication, to the attorney work product doctrine, which does not) ; U.S. v. Am. Telephone & Telegraph Co. , 642 F.2d 1285, 1299 (D.C. Cir. 1980) ("[T]he work product privilege does not exist to protect a confidential relationship"); U.S. v. Massachusetts Inst. of Tech. , 129 F.3d 681, 687 (1st Cir. 1997) ("the [attorney-client privilege] ... is designed to protect confidentiality, so that any disclosure outside the magic circle is inconsistent with the privilege; by contrast, work product protection is provided against adversaries[.]"); see also Barrick , 91 A.3d at 687 (Baer, J., Opinion in Support of Affirmance) ("If [an attorney work product] document was sent to the expert witness, it would be protected by Rule 4003.3's work product provision."). In fact, some courts and commentators have suggested that the minority of courts finding waiver of the work product doctrine on the basis of disclosure are confusing the work product and attorney-client privileges. See Kittitas Cnty. v. Allphin , 190 Wash.2d 691, 416 P.3d 1232, 1243 n.13 (2018) ("While it does not appear that any states or federal courts have officially adopted the same standard of waiver for both the attorney-client privilege and work product protection, the standards for waiver are sometimes conflated.") (citing 8 Wright & Miller, Fed. Prac. & Proc. (civ.), The Work-Product Rule - Matters Protected by the Work-Product Rule § 2024 (3d. ed. April 2017)). Accordingly, because the purposes of the attorney-client privilege and the work product doctrine are different, the waiver analysis for each rule necessarily diverges as well. See Allphin , 416 P.3d at 1243 ("The different standards of waiver for the attorney-client privilege and work product protection result from the differing purposes behind the doctrines.").

Whereas disclosure to a third party generally waives the attorney-client privilege,7 the same cannot be said for *978application of the work product doctrine because disclosure does not always undermine its purpose. See Bagwell , supra ; Allphin , supra . As the purpose of the doctrine must drive the waiver analysis, we hold that the work product doctrine is waived when the work product is shared with an adversary, or disclosed in a manner which significantly increases the likelihood that an adversary or anticipated adversary will obtain it. This waiver rule comports with the prevailing view in state and federal courts across the country, and the rule's fact intensive structure requires evaluation on a case-by-case basis. Allphin , supra ; Am. Zurich Ins. Co. v. Mont. Thirteenth Judicial Dist. Court , 364 Mont. 299, 280 P.3d 240, 248 (2012) ("Disclosure only waives the work product protection if it is inconsistent with the maintenance of secrecy from the disclosing party's adversary.") (quoting U.S. v. Deloitte , 610 F.3d 129, 140 (D.C. Cir. 2010) ; Fox v. Alfini , 432 P.3d 596, 604 (Colo. 2018) (Hood, J., concurring) ("[V]oluntary disclosure of information to third parties does not ordinarily constitute a waiver of exemption from discovery under the work product doctrine, unless such disclosure is to an adversary in the litigation[.]"); Chevron , 633 F.3d at 165 ("it is only in cases in which the material is disclosed in a manner inconsistent with keeping it from an adversary that the work-product doctrine is waived."); Blattman v. Scaramellino , 891 F.3d 1, 5 (1st Cir. 2018) (same); RESTATEMENT (THIRD) OF THE LAW GOVERNING LAWYERS § 91(4) (2000) ("Work-product immunity is waived if the client, the client's lawyer, or another authorized agent of the client ... discloses the material to third persons in circumstances in which there is a significant likelihood that an adversary or potential adversary in anticipated litigation will obtain it.").

After an in camera review of the Jarrard documents, it is readily apparent that the email from outside counsel to Fedele constituted attorney work product.8 The critical inquiry, then, is whether the work product doctrine was waived. We recognize that a fact intensive analysis is required to determine whether Fedele sending outside counsel's email to Cate "significantly increased the likelihood that an adversary or potential adversary would obtain it." RESTATEMENT (THIRD) OF THE LAW GOVERNING LAWYERS § 91(4) (2000). Courts tasked with analyzing similar factual situations generally consider whether the disclosure was "inconsistent with the maintenance of secrecy from the disclosing party's adversary." Deloitte , 610 F.3d at 140. In evaluating the maintenance of secrecy standard, a lower court should consider whether a reasonable basis exists for the disclosing party to believe "that the recipient would keep the disclosed material confidential." Id.

The level of confidentiality, however, should not be conflated with the heightened level of confidentiality required under the attorney-client privilege. Indeed, "while the mere showing of a voluntary disclosure to a third person will generally suffice to show waiver of the attorney-client privilege, it should not suffice in itself for waiver of the work product privilege."

*979Am. Tel. & Tel. Co. , 642 F.2d at 1299. Commentators have recognized the confusion which can follow in comparing the confidentiality associated with attorney-client privilege and the work product doctrine.

There are some cases that suggest that any disclosure of a document to a third person waives the work-product immunity to which it would otherwise be entitled. Decisions to this effect confuse the work-product immunity with the attorney-client privilege. The attorney-client privilege has its basis in the confidential nature of the communication and the reason for the privilege ordinarily ceases to exist if confidentiality is destroyed by voluntary disclosure to a third person. But the purpose of the work-product rule is not to protect the evidence from disclosure to the outside world but rather to protect it only from the knowledge of opposing counsel and his client, thereby preventing its use against the lawyer gathering the materials.

The Work-Product Rule - Matters Protected by the Work-Product Rule § 2024 (3d. ed. April 2017) (citations and quotations omitted). Attorney work product need be kept confidential only from the adversary. Fox , 432 P.3d at 604 ; Allphin , 416 P.3d at 1243 ; Massachusetts Inst. of Tech. , 129 F.3d at 687 ("the [attorney-client privilege] ... is designed to protect confidentiality, so that any disclosure outside the magic circle is inconsistent with the privilege; by contrast, work product protection is provided against adversaries[.]").

In this case, the factual record is insufficient for us to conduct a waiver analysis. Accordingly, we remand to the trial court for factual findings and application of the newly articulated waiver analysis,9 as it *980is not an appellate court's function to engage in fact finding. Icicle Seafoods, Inc. v. Worthington , 475 U.S. 709, 714, 106 S.Ct. 1527, 89 L.Ed.2d 739 (1986) ("If the Court of Appeals believed that the District Court had failed to make findings of fact essential to a proper resolution of the legal question, it should have remanded to the District Court to make those findings ... [the Court of Appeals] should not simply have made factual findings on its own.")

We must now review the second issue upon which we granted review, specifically, whether the attorney-client privilege protects the documents in question. Excela argues that the attorney-client privilege should extend to the email from Fedele to Jarrard because Jarrard is, as Excela claims, an agent or representative of Excela. Had Fedele conferred internally with a public relations employee within the company, Excela argues any claim of waiver would not be colorable. Moreover, Excela asserts that it is inconsistent and unsound policy to permit a private attorney to discuss legal strategy with consultants and agents while barring in-house and government lawyers from doing the same. In support of this position, Excela relies on United States v. Kovel , 296 F.2d 918 (2d Cir. 1961), which it describes as a "landmark opinion" concerning the scope of attorney-client privilege. Excela's Brief at 42.

In Kovel , a law firm hired a former Internal Revenue Service agent to assist an attorney in the provision of legal advice to a client who was being investigated for income tax violations. Kovel , 296 F.2d at 918. Kovel, the former IRS agent, was subpoenaed and asked about communications he had with the client during the client's conversations with the attorney and Kovel. Id. at 919. Kovel refused to disclose any communications and was eventually held in contempt of court. Id. at 920.

On appeal, the Second Circuit vacated Kovel's sentence. Id. at 924. Holding that the attorney-client privilege protected the communications between the client and Kovel, the court compared Kovel's expertise as an accountant to a third party interpreter:

Accounting concepts are a foreign language to some lawyers in almost all cases, and to almost all lawyers in some cases. Hence, the presence of an accountant, whether hired by the lawyer or by the client, while the client is relating a complicated tax story to the lawyer, ought not destroy the privilege ... [because] the presence of the accountant is necessary, or at least highly useful, for the effective consultation between the client and lawyer which the privilege is designed to permit.... What is vital to the privilege is that the communication be made for the purpose of obtaining legal advice from the lawyer.

Id. at 922.

Here, Excela asserts that Jarrard played a similar role to the accountant in Kovel , in that Jarrard and its employees facilitated the procurement of legal advice between Excela and its attorney. In this regard, Excela urges this court to expand the attorney client privilege to include confidential communications between the client, lawyer, and either parties' representative. Excela's Brief at 43-44. This interpretation of the attorney-client privilege, Excela contends, is consistent with at least 15 other states' rules of evidence governing the attorney-client privilege. Excela's *981Brief at 46.10 Moreover, Excela notes several federal district court cases which have treated communications between in-house counsel, outside counsel, and public relations firms as protected under the attorney-client privilege. Excela's Brief at 49-54.11 Relying on this precedent, Excela argues that the demands of modern legal practice require that lawyers' communications with public relations experts, particularly in the face of a public crisis, remain confidential.

BouSamra, however, argues that, in order for a communication to be protected under the attorney-client privilege, the communication must be confidentially communicated between the attorney and client. For this reason, BouSamra asserts, Excela's claim of privilege fails, because the communication at issue was disclosed to Cate, a third-party. Thus, according to BouSamra, Excela's assertion of the attorney-client privilege is facially flawed. BouSamra's Brief at 43.

Moreover, aside from the transmittal of the communication to Jarrard employees, BouSamra alleges that the communication was also potentially waived depending on which employees at Excela received the information. Relying on Red Vision Sys., Inc. v. Nat'l Real Estate Info. Servs., L.P. , 108 A.3d 54, 60 (Pa. Super. 2015), BouSamra alleges that when dealing with corporations, the attorney-client privilege applies only to the directors, officers, and other individuals who may act on behalf of the corporation. Thus, BouSamra claims, if the communication was made to employees outside of that group, the privilege is waived. On this ground, BouSamra avers that even if Jarrard was acting as an in-house public relations department for Excela, the communication would not be protected by attorney-client privilege. BouSamra's Brief at 48.

Further, BouSamra rejects Excela's reliance on Kovel , supra , arguing that Kovel is inapposite to this case. Specifically, BouSamra alleges that unlike in Kovel , where the accountant was required for the effective consultation and communication between the attorney and the client, Jarrard employees were sent the email in question after it was communicated to Fedele. Thus, in this case, BouSamra argues that Jarrard employees were not sent the email in order to effectuate the legal representation, and the lawyer giving the advice did not require the assistance of Jarrard employees in comprehending complex facts, necessitating expert assistance. BouSamra's Brief at 55.

Lastly, BouSamra asserts that Excela's reliance on decisions from other jurisdictions is misplaced for several reasons. First, BouSamra points out that many of the cases Excela cites are interpreting either other states' rules on attorney-client *982privilege, or are applying the federal rule, which BouSamra alleges is broader in scope than the protections offered by the attorney-client privilege in Pennsylvania. Additionally, BouSamra directs us to several cases, also from other jurisdictions, which purport to reject the Kovel standard, or refuse to protect communications between public relations firms and outside counsel. BouSamra's Brief at 56-63.12

In its reply brief, Excela alleges that we have approved of the Superior Court's extension of the attorney-client privilege to agents in the criminal context. Commonwealth v. Harris , 612 Pa. 576, 32 A.3d 243, 253 (2011) (citing Commonwealth v. Noll , 443 Pa.Super. 602, 662 A.2d 1123, 1126 (1995) ). Thus, Excela claims the same extension should be proffered to agents in civil cases, which, Excela avers, Jarrard is in this case. Excela's Reply Brief at 13-14.

The attorney-client privilege has long been recognized as imperative in effectuating sound legal representation, facilitating honest and frank communication between an attorney and client. Commonwealth v. Maguigan , 511 Pa. 112, 511 A.2d 1327, 1333-34 (1986) ("The attorney-client privilege is deeply rooted in our common law and can be traced to the reign of Elizabeth I, where it was already unquestioned.") (citing 8 J. Wigmore, Evidence § 2290 (McNaughton Rev. 1961)). Today, the modern iteration of the attorney-client privilege is established in statute:

In a civil matter counsel shall not be competent or permitted to testify to confidential communications made to him by his client, nor shall the client be compelled to disclose the same, unless in either case this privilege is waived upon the trial by the client.

42 Pa.C.S. § 5928. The codification of the privilege is essentially "a restatement of the common law privilege and its attendant case law interpretations." Maguigan , 511 A.2d at 1333.

Courts have consistently recognized that the purpose of the attorney-client privilege is "to foster the free and open exchange of relevant information between the lawyer and client." Gillard v. AIG Ins. Co. , 609 Pa. 65, 15 A.3d 44, 47 (2011) (citing Jaffee v. Redmond , 518 U.S. 1, 10, 116 S.Ct. 1923, 135 L.Ed.2d 337 (1996) ; Upjohn Co. v. United States , 449 U.S. 383, 389, 101 S.Ct. 677, 66 L.Ed.2d 584 (1981) ; RESTATEMENT (THIRD) OF THE LAW GOVERNING LAWYERS § 68 cmt. c (2000)). Indeed, "the privilege is grounded in a policy entirely extrinsic to protection of the fact-finding process;" instead, the interest of trusting, open, and honest attorney-client communications is paramount. Estate of Kofsky , 487 Pa. 473, 409 A.2d 1358, 1362 (1979). In light of this purpose, however, the privilege is deemed waived once confidential attorney-client communications are disclosed to a third party. Joe v. Prison Health Servs., Inc. , 782 A.2d 24, 31 (Pa. Cmwlth. 2001) ; Nationwide Mut. Ins. Co. v. Fleming , 605 Pa. 468, 992 A.2d 65, 68 (2010) (Eakin, J., Opinion in Support of Affirmance).

A party claiming a communication is privileged must set forth facts showing the privilege was properly invoked.

*983Nationwide Mut. Ins. Co. v. Fleming , 924 A.2d 1259, 1266 (Pa. Super. 2007), aff'd 605 Pa. 468, 992 A.2d 65 (2010). In this regard, the moving party must prove four elements:

1) [t]he asserted holder of the privilege is or sought to become a client[;]

2) [t]he person to whom the communication was made is a member of the bar of a court, or his subordinate[;]

3) [t]he communication relates to a fact of which the attorney was informed by his client, without the presence of strangers, for the purpose of securing either an opinion of law, legal services or assistance in a legal matter, and not for the purpose of committing a crime or tort[;]

4) [t]he privilege has been claimed and is not waived.

Id. at 1264. Upon that showing, the burden shifts to the party seeking disclosure, which must explain why the communication at issue should not be privileged. Id. ; see also Custom Designs & Mfg. Co. v. Sherwin-Williams Co. , 39 A.3d 372, 376 (Pa. Super. 2012).

Where, as here, the client is a corporation, the attorney-client privilege "extends to communications between its attorney and agents or employees authorized to act on the corporation's behalf." Pa. State Univ. v. W.C.A.B. (Sox) , 83 A.3d 1081, 1092 (Pa. Cmwlth. 2013) ; Red Vision , 108 A.3d at 60 ; Pittsburgh History and Landmarks Found. v. Ziegler , --- Pa. ----, 200 A.3d 58, 76 (2019). This application of the attorney-client privilege is consistent with the prevailing view, and is in accordance with the United States Supreme Court's opinion:

The administration of the attorney-client privilege in the case of corporations, however, presents special problems. As an inanimate entity, a corporation must act through agents. A corporation cannot speak directly to its lawyers. Similarly, it cannot directly waive the privilege when disclosure is in its best interest. Each of these actions must necessarily be undertaken by individuals empowered to act on behalf of the corporation.

* * *

The parties in this case agree that, for solvent corporations, the power to waive the corporate attorney-client privilege rests with the corporation's management and is normally exercised by its officers and directors.

Commodity Futures Trading Comm'n v. Weintraub , 471 U.S. 343, 348, 105 S.Ct. 1986, 85 L.Ed.2d 372 (1985).

Under the nonbinding authority of Kovel , discussed supra , some Pennsylvania courts have extended the attorney-client privilege to third parties; specifically, agents of the client or lawyer. See Commonwealth v. Noll , 443 Pa.Super. 602, 662 A.2d 1123, 1126 (1995). In Commonwealth v. Noll , Noll was involved in a motor vehicle accident which resulted in the death of a passenger in the other vehicle. Id. at 1125. Noll hired an attorney to represent him in a prospective civil suit. Id. The attorney subsequently hired an accident reconstruction expert. Id. As a result of the expert's findings, Noll elected not to pursue a civil action. Id.

Subsequently, the Commonwealth hired the exact same expert to investigate the accident, which led to the Commonwealth charging Noll with homicide by vehicle. Noll filed a motion in limine , arguing that the expert's testimony should be precluded from trial. Id. at 1125-26. The trial court agreed, and the Superior Court affirmed, reasoning:

The attorney-client privilege has been part of Pennsylvania law since the founding of the Pennsylvania colony, and *984has been codified in our statutory law. The attorney-client privilege is not waived where a client allows disclosure to an agent assisting the attorney in giving legal advice to the client. Thus, where legal assistance is rendered by an agent of an attorney, communications are permanently protected from disclosure by the agent, the attorney, or the client, unless waived by the client. As [the accident reconstruction expert] was an agent of [Noll's attorney] hired to assist in providing legal advice to Mr. Noll, the attorney-client privilege was not waived.... In the instant case, [the accident reconstruction expert] was retained by [Noll's attorney] to investigate an incident in order to provide legal advice. Therefore, any information regarding [the accident reconstruction expert's] investigation of the accident would be privileged.

Id. at 1126 (citations omitted); accord Commonwealth v. duPont , 730 A.2d 970, 977 (Pa. Super. 1999) (recognizing that "the attorney-client privilege does extend to an agent of an attorney who assists in the provision of legal advice to the client."). This court has similarly recognized that the attorney-client privilege can, in some circumstances, extend to a testifying expert as an agent of the lawyer who retained the expert. Commonwealth v. Harris , 612 Pa. 576, 32 A.3d 243, 252-53 (2011) (finding a psychologist who testified on behalf of the defendant was "privy to such confidential attorney-client communications" such that he could not later testify for the Commonwealth in related proceedings).

Here, after careful consideration of the foregoing, we hold that Excela waived the attorney-client privilege. The email in question was sent from Excela's outside counsel to Fedele, the Senior Vice-President and General Counsel of Excela. Thus, as a communication between Excela's attorney and an employee authorized to act on Excela's behalf, the email was originally a protected communication pursuant to the attorney-client privilege. See Red Vision , supra ; 42 Pa.C.S. § 5928.

The critical inquiry, then, is whether Fedele forwarding the email to Cate constituted a waiver of the privilege. As we recognized above, the attorney-client privilege is waived when a confidential communication is shared with a third party. See Prison Health Servs., Fleming , supra . Cate was an employee of Jarrard, not Excela, and thus under the current iteration of the law, Cate was not capable of acting on Excela's behalf, as she is not an officer, executive, or director of Excela. See Yocabet v. UPMC Presbyterian , 119 A.3d 1012, 1028 (Pa. Super. 2015). Accordingly, Fedele could not send the email to Cate as an individual under the ambit of the attorney-client privilege as it applied to Excela and its outside counsel. Id.13 Excela points out, *985however, that under the reasoning of Noll and Kovel , the privilege should not be waived, as Jarrard and its employees were agents of Excela who were facilitating the lawyer's ability to provide legal advice.

We find this reasoning unpersuasive. In both Kovel and Noll , the respective third parties--an accountant and an accident reconstruction expert--were privy to confidential information as a necessary means of improving the comprehension between the lawyer and client which facilitated the lawyer's ability to provide legal advice. In Kovel , the accountant's presence and opinion were necessary for the lawyer to understand the client's tax story, a prerequisite to furnishing legal advice. Kovel , 296 F.2d at 922 ("the presence of an accountant ... while the client is relating a complicated tax story to the lawyer, ought not destroy the privilege[.]"). Similarly, in Noll , the accident reconstruction expert was hired by the lawyer to prepare for possible litigation--again, a step that was required prior to the lawyer being able to give legal advice to the client. Noll , 662 A.2d at 1125 (noting that the attorney hired an accident reconstruction expert "to assist in preparation for possible litigation."); accord Harris , 32 A.3d at 253 (extending attorney client privilege to expert witness); duPont , 730 A.2d at 977 ("[A]ttorneys today often consult with and rely upon the advice of other professionals to assist them in providing legal services. However, application of the privilege requires confidential communications made in connection with providing legal services.").

In both cases, the critical fact is that the third-party's presence was either indispensable to the lawyer giving legal advice or facilitated the lawyer's ability to give legal advice to the client. That is not the case here. Fedele sending the email in question to Cate, after it was sent to him, did not retroactively assist either outside counsel or Fedele in providing legal advice to Excela. In fact, the email did not solicit advice or input from Cate, nor did the attorney send it to Cate. Thus, this case is not akin to Kovel or Noll , where the third-party's receipt of information facilitated or improved the lawyer's ability to provide legal advice.14

Neither the original email from outside counsel, nor the email from Fedele forwarding that email solicits input, advice, or opinion. That finding is in accordance with Cate's testimony, where she claimed that the decision to name the physicians involved in the alleged stenting scandal was made by Rogalski, Excela's CEO. Deposition of Molly Cate, June 26, 2014, at 135-37. While she testified that she had conversations *986with upper-level management regarding disclosure of the doctors' identities, that alone, is insufficient to establish that Cate and Jarrard employees were indispensable to outside counsel or Fedele's giving of legal advice to Excela. Id. at 135.

In some situations, a third-party's presence may be necessary for a lawyer to provide legal advice to a client.15 This is the type of situation that Kovel contemplates, where an accountant or interpreter must be present in order to explain foreign concepts or terms. In that situation, the lawyer cannot, or would find it exceedingly difficult, to provide legal advice. That is, however, not the case here, where, upon receiving a privileged communication from an attorney, a client sends that communication to a third-party. As a result, we hold that Excela waived the attorney-client privilege when Fedele, a high ranking officer permitted to act on behalf of the corporation, see Red Vision , supra , forwarded a privileged communication to Cate, a third-party. Accordingly, the order of the Superior Court is affirmed in part, reversed in part, and this matter is remanded to the trial court for factual findings and application of the attorney work product doctrine consistent with this opinion.

Chief Justice Saylor and Justices Baer and Wecht join the opinion.

Justice Donohue files a concurring opinion in which Justices Todd and Dougherty join.

Justice Wecht files a concurring opinion.

I join in the Majority's determination that Excela Health ("Excela") waived attorney-client privilege when its in-house counsel (Timothy Fedele ("Fedele")) disseminated confidential communications prepared by an outside attorney to a third party, Molly Cate ("Cate"), a principal of a public relations consulting firm (Jarrard, Phillips, Cate & Hancock ("Jarrard")). I also concur in the Majority's decision to adopt a test for waiver of the work product privilege akin to that set forth in section 91(4) of the Restatement (Third) of the Law Governing Lawyers ("Restatement"). I write separately, however, to offer what I consider to be a significant, if not dispositive, consideration for the trial court when applying the test adopted here on remand.

With respect to the attorney-client privilege, the Majority correctly indicates that the general rule is that this privilege is waived when the confidential communication at issue is shared with a third party. Majority Op. at 981. The Majority recognizes that Jarrard was a third party, as Cate was not an employee, officer, executive or director of Excela. Id. at 985. Moreover, no exception to the general rule applied here, as Fedele's transmittal of the confidential communication was not for the purpose of assisting outside counsel in providing legal advice to Excela. Id. Fedele did not request input, advice or an opinion on outside counsel's work from Jarrard. Id. As a result, Fedele's sharing of outside *987counsel's communications with Cate resulted in a clear waiver of the attorney-client privilege.

Turning to the issue of waiver of the work product doctrine,1 the starting point *988must be this Court's recognition in Lepley v. Lycoming County Court of Common Pleas , 481 Pa. 565, 393 A.2d 306 (1978) that work product is "not protected against compelled disclosure by a Constitutional, statutory, or common-law privilege[.]" Id. at 310. Instead, protection for an attorney's work product is set forth in Rule 4003.3 of our procedural rules as adopted by this Court:

Subject to the provisions of Rules 4003.4 and 4003.5, a party may obtain discovery of any matter discoverable under Rule 4003.1 even though prepared in anticipation of litigation or trial by or for another party or by or for that other party's representative, including his or her attorney, consultant, surety, indemnitor, insurer or agent. The discovery shall not include disclosure of the mental impressions of a party's attorney or his or her conclusions, opinions, memoranda, notes or summaries, legal research or legal theories. With respect to the representative of a party other than the party's attorney, discovery shall not include disclosure of his or her mental impressions, conclusions or opinions respecting the value or merit of a claim or defense or respecting strategy or tactics.

Pa.R.C.P. 4003.3 (emphasis added).

On its face, the highlighted portion of the rule suggests that an attorney's work product may never be subject to discovery during litigation, as it does not appear to admit to any exceptions. In practice, however, this is not the case. The explanatory comment provides one such exception, specifically the circumstance in which the legal opinion of an attorney becomes a relevant issue in the litigation, including for example in an action for malicious prosecution or abuse of process in which the defense is based upon a good faith reliance on the advice of counsel. Pa.R.C.P. 4003.3 Explanatory Comment. Moreover, Excela freely admits that the work product protection may be waived if it is given "to a newspaper, putting it on a website, or otherwise widely disseminating [it.]" Excela's Reply Brief at 10.

In determining when work product protections have been waived, I agree with the Majority's adoption of a test aligned with the one set forth in section 91 of the Restatement.2 This provision states, in relevant part, that "[w]ork-product immunity is waived if the client, the client's lawyer, or another authorized agent of the client ... discloses the material to third persons in circumstances in which there is a significant likelihood that an adversary or potential adversary in anticipated litigation will obtain it." Restatement § 91(4) (2000). As the Majority appropriately notes, this test *989has been widely adopted and applied by federal and state courts alike. See, e.g. , In re Chevron Corp. , 633 F.3d 153, 165 (3d Cir. 2011) ; United States v. Massachusetts Institute of Technology (MIT) , 129 F.3d 681, 687 (1st Cir. 1997) ; Continental Cas. Co. v. Under Armour, Inc. , 537 F. Supp. 2d 761, 772 (D. Md. 2008) ; Kittitas Cty. v. Allphin , 190 Wash.2d 691, 416 P.3d 1232, 1243 (2018), as amended (June 18, 2018); O'Boyle v. Borough of Longport , 218 N.J. 168, 94 A.3d 299, 313 (2014) ; Am. Zurich Ins. Co. v. Mont. Thirteenth Judicial Dist. Court , 364 Mont. 299, 280 P.3d 240, 248 (2012).

This test is appropriate under Pennsylvania law. Waiver of work product immunity should appropriately be limited in accordance with the purpose of its protections, which this Court described in the explanatory comment to Rule 4003.3 to be "to keep the files of counsel free from examination by the opponent[.]" Pa.R.C.P. 4003.3 Explanatory Comment - 1978. Whereas the attorney-client privilege is designed to protect confidentiality, the work product doctrine works to protect against disclosure to adversaries. Id. Section 91 of the Restatement appropriately limits instances of waiver in accordance with the essential purpose for providing the doctrine's protections - to keep the work product from adversaries in litigation.

For purposes of remand to the trial court, one refinement to the test for waiver of work product adopted here is in order. As described by the Majority, the test requires an analysis of whether the work product is "disclosed in a manner which significantly increases the likelihood that an adversary or potential adversary will obtain it." Majority Op. at 978 (emphasis added). As such, the manner of disclosure is an important consideration in applying the test, as disclosure must be effectuated by taking adequate precautions to ensure that the information cannot find its way into the hands of an adversary. As one federal court has keenly observed, "failure to take adequate precautions to prevent an adversary from obtaining work product information warrants waiver because '[i]ndifference to such a consequence indicates that protection of the immunity was not important to the person claiming the protection.' " Continental , 537 F. Supp. 2d at 772 (quoting Restatement § 91 comment b); see also Chevron , 633 F.3d at 165 (waiver occurs only when "the material is disclosed in a manner inconsistent with keeping it from an adversary"); MIT , 129 F.3d at 687 ("disclosing material in a way inconsistent with keeping it from an adversary waives work product material"); O'Boyle , 94 A.3d at 313 ) ("The inquiry invariably devolves to an examination of the nature of the disclosure itself.").

As a result, in applying the waiver test, the trial court will need to focus on whether Fedele, when disseminating outside counsel's work product to Cate, took any or all of the necessary and available precautions to reduce or eliminate the likelihood that the information could be obtained by Appellant, Dr. BouSamra.3 The *990manner in which Fedele disseminated the work product information will thus be an important, if not dispositive, consideration in deciding whether a finding of waiver is in order.

Justices Todd and Dougherty join this concurring opinion.

I join the Majority's well-reasoned opinion. I concur in the Majority's conclusion that Excela Health ("Excela") waived attorney-client privilege when its in-house counsel, Timothy Fedele ("Fedele"), disclosed to public relations firm Jarrad, Phillips, Cate & Hancock ("Jarrad") a confidential communication that Fedele had received from Excela's outside counsel. On this issue, I have nothing to add to the Majority's learned and thorough analysis.

I agree as well with the standard that the Majority adopts regarding waiver of attorney work product protection. As this Court announces a new common law rule today, I write separately to comment on that rule's implications for future litigation.

The work product doctrine promotes the adversarial system by affording lawyers a protected private space within which to prepare their cases. See Barrick v. Holy Spirit Hosp. of Sisters of Christian Charity , 625 Pa. 301, 91 A.3d 680, 686 (2014) (Opinion Announcing the Judgment of the Court) ("[T]he work product protection supports our judicial system based on the adversarial process by allowing counsel privacy to develop ideas, test theories, and explore strategies in support of the client's interest, without fear that the documents in which the ideas, theories and strategies are written will be revealed to the opposing counsel.").1

Effectively adopting Section 91 of the American Law Institute's Restatement (Third) of the Law Governing Lawyers,2 the Majority holds (and I agree) that this work product protection is waived "when the work product is shared with an adversary, or disclosed in a manner which significantly increases the likelihood that an *991adversary or anticipated adversary will obtain it." See Maj. Op. at 978. When work product is shared directly with an adversary, the resulting waiver likely will be clear. The more difficult question is how a court determines whether a communication has been "disclosed in a manner which significantly increases the likelihood that an adversary or anticipated adversary will obtain it." See id. As acknowledged by the Majority and by courts that have adopted a similar approach, application of the test is fact-intensive, requiring case-by-case examination. See id. The inquiry is not readily susceptible to bright-line rules. Opinions employing comparable waiver analyses provide only as much persuasive guidance concerning the Section 91 paradigm as the fact patterns in each individual case will allow, whether by analogy or by other common law methods.

The most instructive opinion comes to us from the United States Court of Appeals for the District of Columbia Circuit, which held that "disclosing work product to a third party can waive protection 'if such disclosure, under the circumstances, is inconsistent with the maintenance of secrecy from the disclosing party's adversary.' " United States v. Deloitte, LLP , 610 F.3d 129, 140 (D.C. Cir. 2010) (quoting Rockwell Int'l Corp. v. U.S. Dep't of Justice , 235 F.3d 598, 605 (D.C. Cir. 2001) ). In determining whether disclosure is inconsistent with maintaining the secrecy of the communication, the Court of Appeals concluded, jurists must examine "whether the disclosing party had a reasonable basis for believing that the recipient would keep the disclosed material confidential." Deloitte , 610 F.3d at 141. The Deloitte Court considered whether Dow Chemical Company's disclosure of attorney work product to Dow's independent auditor waived the work product protection. Applying the above-recited standard, the court noted that a reasonable expectation of confidentiality "may be rooted in a confidentiality agreement or similar arrangement between the disclosing party and the recipient." Id. Moreover, where the relationship between the disclosing party and the third party is governed by rules of professional conduct that entail a duty of confidentiality, it is reasonable to expect that the third party will maintain secrecy. Id. at 142.3

In the particular context of disclosures to public relations consultants, the United States District Court for the Southern District of New York has reasoned that, while public relations advice is not itself subject to work product protection:

[i]t does not follow, however, that an otherwise valid assertion of work-product protection is waived with respect to an attorney's own work-product simply because the attorney provides the work-product to a public relations consultant whom he has hired and who maintains the attorney's work-product in confidence.

*992This is especially so if ... the public relations firm needs to know the attorney's strategy in order to advise as to public relations, and the public relations impact bears, in turn, on the attorney's own strategizing as to whether or not to take a contemplated step in the litigation itself and, if so, in what form.

Calvin Klein Trademark Trust v. Wachner , 198 F.R.D. 53, 55 (S.D.N.Y. 2000) (internal citations omitted). In Wachner , the trust's attorney had retained the public relations firm that was providing consulting services for the trust. Such an engagement presents a factual circumstance that is lacking in the instant case, yet this distinction itself is not dispositive. Rather, in determining whether work product protection has been waived, the third-party recipient's employment status is less important than the question of whether there exists a "reasonable basis for believing that the recipient would keep the disclosed material confidential." See Deloitte , 610 F.3d at 141 ; In re Copper Market , 200 F.R.D. 213, 221 n.6 (S.D.N.Y. 2001) (noting that, even if public relations firm was not the functional equivalent of the client's employee, disclosure did not result in waiver of the work product protection because the disclosure did not substantially increase the possibility that an adversary would obtain the information). By contrast, in the context of the attorney-client privilege, the employment status of a third party can become the central consideration, because, where the client is a corporation, the privilege extends to agents or employees of the client authorized to act on the corporation's behalf. See Maj. Op. at 983; Yocabet v. UPMC Presbyterian , 119 A.3d 1012, 1027 (Pa. Super. 2015).4

When performing a waiver analysis, it is imperative to keep in mind that "[e]ffective trial preparation often entails disclosing work product to coparties and nonparties." RESTATEMENT (THIRD) OF THE LAW GOVERNING LAWYERS , § 91 cmt. b. This is consistent with the work product doctrine's purpose "to protect information against opposing parties, rather than against all others outside a particular confidential relationship." AT & T , 642 F.2d at 1299. Waiver "follows only where disclosure is inconsistent with the objectives of the immunity." RESTATEMENT (THIRD) OF THE LAW GOVERNING LAWYERS , § 91 cmt. c. Where the disclosing party takes sufficient affirmative steps to maintain the work product's confidentiality, whether through a confidentiality agreement, similar arrangement, or other adequate assurances, such that the disclosing party has a reasonable basis to believe that the receiving party will keep the communication confidential, waiver need not result.

In order to zealously represent their clients, attorneys may be required to disclose work product to third parties. The approach adopted today allows for such disclosures so long as work product is not "shared with an adversary, or disclosed in a manner which significantly increases the likelihood that an adversary or anticipated adversary will obtain it." Maj. Op. at 978. Despite the fact-intensive, post-hoc evaluations that such a formula requires, a less forgiving waiver analysis, especially one that would approach the strict rule applicable to waiver of attorney-client privilege, might have a chilling effect on an attorney's ability to disclose work product to third parties, thus undermining the primary *993aim of the doctrine-to provide an attorney with a zone of privacy within which effectively to represent the client. See Jeff A. Anderson et al., The Work Product Doctrine , 68 CORNELL L. REV. 760, 891-93 (Aug. 1983).

The contours of the rule adopted by today's Majority surely will be shaped further by decisions of this Court and our intermediate appellate tribunals in future controversies. In those fact-intensive contexts, courts should respect and adhere to the protective purpose underlying the work product doctrine while remaining mindful as well of circumstances where a party has waived such protection.