The exceptions to attorney-client privilege fall into a short list: communications made to further a crime or fraud, disputes between a lawyer and client, bar disciplinary investigations, will contests after a client’s death, corporate situations where the company holds the privilege instead of the employee, and any situation where the communication was shared with or overheard by a third party. Each has its own rules about what triggers it and how far the disclosure can go. Knowing where each boundary sits matters, because the privilege is only as strong as the narrowest exception that applies to your situation.
Crime or Fraud
This is the most powerful exception and the one courts see most often. If you consult a lawyer to help you plan or continue a crime or fraud, those communications get no protection. The key word is future. A conversation about a crime you already committed and want legal help defending is fully privileged. A conversation aimed at pulling off a fraud that hasn’t happened yet, or concealing one still in progress, is not.
The exception turns on the client’s intent, not the lawyer’s. An attorney who has no idea the advice is being misused still loses the privilege for those communications. A lawyer innocently explaining corporate structure doesn’t restore protection when the client is using that advice to set up a shell company for laundering funds.
Courts use a two-part test. First, the client was engaged in criminal or fraudulent conduct at the time the advice was sought. Second, the advice was obtained to further that conduct. The party trying to pierce the privilege doesn’t have to meet a criminal standard of proof. Most courts require only a preliminary showing sufficient to support a reasonable belief that the communications were tied to wrongdoing.1Office of the Law Revision Counsel. Federal Rules of Evidence, Article V Once that threshold is met, the judge can review the disputed materials in private to decide whether the exception applies. The Supreme Court approved this procedure in United States v. Zolin (1989).
The exception doesn’t dissolve the whole attorney-client relationship. It reaches only the communications tied to the crime or fraud. Everything else stays protected, and much of the courtroom work in these disputes is drawing that line.
Disputes Between You and Your Lawyer
When a client sues their lawyer or accuses the lawyer of wrongdoing, the lawyer is allowed to reveal what’s needed to defend themselves. ABA Model Rule 1.6(b)(5) permits disclosure to establish a claim or defense in a dispute with the client, to respond to a criminal or civil charge involving the client’s conduct, or to answer allegations in any proceeding about the lawyer’s representation.2American Bar Association. Model Rules of Professional Conduct – Rule 1.6: Confidentiality of Information
If you accuse your lawyer of missing a deadline, the lawyer can show the emails proving you sat on signed documents for weeks. If you allege bad settlement advice, the lawyer can produce notes from meetings showing what options were explained and what you chose. Without this exception, a client could file a malpractice claim and then use confidentiality to prevent the lawyer from telling their side. The rule covers arbitration, mediation, and fee disputes too, not just courtroom litigation.2American Bar Association. Model Rules of Professional Conduct – Rule 1.6: Confidentiality of Information
Bar Disciplinary Investigations
Every licensed attorney answers to a state regulatory body. When the bar opens a formal investigation, the lawyer may need to share confidential client information to respond. Model Rule 1.6(b)(5) covers this the same way it covers malpractice claims: the lawyer can reveal what’s reasonably necessary to answer the allegations.2American Bar Association. Model Rules of Professional Conduct – Rule 1.6: Confidentiality of Information
Disciplinary investigations are typically confidential at the outset. Most jurisdictions keep the initial complaint and investigative records sealed. If the matter escalates to formal charges, portions may become public, particularly if the outcome is suspension or disbarment. From the client’s perspective, this means information can come out through a bar proceeding you never authorized, though the disclosure is supposed to stay limited to what the specific allegations require.
Will Contests After a Client’s Death
The privilege usually survives the client. The Supreme Court confirmed this in Swidler & Berlin v. United States (1998), holding that confidentiality continues even when the government seeks a deceased client’s communications in a criminal investigation. If people believed their secrets would be exposed the moment they died, they would hold back during their lifetimes.
The testamentary exception is the narrow way through this post-death protection. When heirs or beneficiaries fight over a will or trust, the attorney who drafted the documents can testify about what the client intended. Nobody is accusing the lawyer of anything here. The court is trying to honor what the deceased person actually wanted, and the drafting attorney is often the only person who can explain ambiguous language or the reasoning behind who was included or excluded.
This exception matters most when a will is challenged on grounds like undue influence or lack of mental capacity. The lawyer’s notes about the client’s state of mind during drafting, the reasons the client gave for specific decisions, and how many times the client reviewed the document can resolve disputes that would otherwise drag through years of probate. If a child was left out, the attorney’s records may confirm that the parent made that choice deliberately.
The exception has a built-in limit. It generally applies only between parties who both claim an interest through the deceased client. A creditor or outside party trying to use it as a doorway into the deceased person’s confidential communications will usually find the privilege still holding.
The Corporate Setting
Privilege works differently when the client is a corporation. In Upjohn Co. v. United States (1981), the Supreme Court held that the privilege can cover communications between company lawyers and employees at all levels, provided the communication was made to get legal advice and fell within the employee’s job duties.3Justia. Upjohn Co. v. United States, 449 U.S. 383 (1981)
The catch: the privilege belongs to the company, not to the employee. Corporate counsel conducting an internal investigation is expected to deliver what’s called an Upjohn warning, telling the employee that the lawyer represents the corporation, that the conversation is privileged, and that the corporation can waive that privilege at any time and hand everything the employee said to regulators or prosecutors. Employees who miss this distinction sometimes speak freely, assuming their words are protected the same way they would be if they had hired their own attorney. They aren’t. If you’re asked to sit for an internal investigation interview, hiring your own personal lawyer is the only way to create a privilege you control.
Waiver: Losing the Privilege Without a Court Order
Not every loss of privilege happens through a judge’s ruling. Careless handling of confidential information can waive it entirely, and voluntary disclosure can spread the waiver beyond what was actually shared.
Third Parties in the Room
A conversation with your lawyer generally loses its privileged status if a third party is knowingly present. Bringing a friend to a meeting, copying a non-essential colleague on a legal strategy email, or discussing your case where others can hear all destroy the confidentiality the privilege requires. Narrow exceptions exist for people who are functionally part of the legal team, such as interpreters, paralegals, and expert consultants the lawyer retains. A common-interest exception also protects communications shared between separately represented parties working toward a shared legal goal.
Sharing One Document Can Force Out More
Intentionally disclosing a privileged communication to an outsider waives the privilege for that communication. Under the subject-matter waiver doctrine, voluntarily disclosing one privileged document can force disclosure of related privileged materials on the same topic when fairness requires them to be considered together.4Legal Information Institute. Federal Rules of Evidence Rule 502 – Attorney-Client Privilege and Work Product; Limitations on Waiver This stops parties from cherry-picking favorable privileged documents while hiding unfavorable ones. Share one email from a chain to make yourself look good, and the court can order the rest of the chain produced.
Accidental disclosures get more forgiving treatment. Federal Rule of Evidence 502(b) provides that an inadvertent disclosure does not waive the privilege if you took reasonable steps to prevent the error and acted promptly to fix it after discovering it.4Legal Information Institute. Federal Rules of Evidence Rule 502 – Attorney-Client Privilege and Work Product; Limitations on Waiver
How Much Actually Comes Out
Every exception shares one constraint: disclosure must be limited to what is reasonably necessary to address the specific issue. A lawyer defending a malpractice claim doesn’t get to dump the entire client file into the record. An attorney responding to a bar complaint can share communications relevant to the alleged misconduct and nothing more. A drafting attorney testifying in a will contest can discuss testamentary intent without revealing unrelated personal matters the client shared over years of representation.
Courts enforce these boundaries through in camera review, where the judge examines the disputed documents privately before deciding what the other side gets to see.5Legal Information Institute. In Camera Protective orders add another layer, restricting who sees the material and prohibiting its use in other litigation. A lawyer who discloses more than the exception permits can face a separate breach-of-confidentiality claim from the client and additional disciplinary charges from the bar. The exception is a scalpel, not a sledgehammer, and courts have little patience for attorneys who treat it otherwise.