Unless an exception applies, the client may refuse to disclose the information in a court proceeding and may prevent the lawyer from doing so. Corporate-Attorney Client Privilege.Rule 503 continues the longstanding tradition of protecting attorneyclient privilege in order to facilitate honest and complete communication. In Texas, the attorneyclient privilege is a legal safeguard that protects confidential communications between attorneys and their clients. Godfrey, Recent Developments: The Revised AttorneyClient Privilege for Corporations in Texas, 30. TEX. The attorney-client privilege preserves the confidentiality of communications, whether written, oral, or electronic, between attorneys and their clients. Were it otherwise the client would be reluctant to confide in legal counsel. The company's management has the power to waive the attorney-client privilege. Certain things must be in place to trigger this crucial protection. In Texas, communications must meet the following criteria to be covered: 1.