From the web site of the State Bar of Georgia

June 12, 2000, the Supreme Court of Georgia adopted the new Georgia Rules of Professional Conduct that became effective on January 1, 2001. The Georgia Rules of Professional Conduct replace rules 4-101 and 4-102 of Part IV, Discipline, of the Rules of the State Bar of Georgia.

Part IV (Before January 1, 2001) - Discipline

Rule 4-102. Disciplinary Action; Levels of Discipline; Standards

(a) The Standards of Conduct to be observed by the members of the State Bar of Georgia and those authorized to practice law in Georgia are set forth herein and any violation thereof shall subject the offender to disciplinary action and/or punishment as hereinafter provided.

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Standard 28
A lawyer may not reveal the confidence and secrets of a client.
(a) Except when permitted under Standard 28(b) below, a lawyer shall not knowingly:
(1) use a confidence or secret of his client to the disadvantage of his client;
(2) use a confidence or secret of his client for the advantage of himself or of a third person, unless the client consents after full disclosure.

(b) A lawyer may reveal:
(1) confidences or secrets with the consent of the client or clients affected, but only after a full disclosure to them;
(2) confidences or secrets when permitted under disciplinary rules or required by law or court order;
(3) the intention of his client to commit a crime and the information necessary to prevent the crime;
(4) confidences or secrets necessary to establish or collect his fee or to defend himself or his employees or associates against an accusation of wrongful conduct.

(c) "Confidence" refers to information protected by the attorney-client privilege under an applicable law, and "secret" refers to other information gained in the professional relationship that the client has requested to be held inviolate or the disclosure of which would be embarrassing or would likely be detrimental to the client.

A violation of this standard may be punished by disbarment.