This privilege enables people to get confidential advice without fear of having the conversation disclosed at court. In simplest terms, attorneyclient privilege guards any communication between an attorney and client from disclosure without consent.The attorney-client relationship affords a distinct, invaluable right to have communications protected from compelled disclosure to any third party. The principle that the attorney-client privilege attaches to third-party consultants also has been applied to representatives of the attorney, such as. Generally, the idea of privilege is this: communications between a client and the attorney are confidential. The attorneyclient privilege is the backbone of the legal profession. It encourages the client to be open and honest with his or her attorney. Investigation in the attorney- client privilege.