Abstract: Speech actuated security devices and methods whereby a lock, or other security or access device, may be actuated by a speech input thereto, but without disclosure of the actual code where doing so to those hearing the code words spoken during use of the security device. The security device includes a microphone, a display for displaying a plurality of code elements, and a processor for controlling the display and analyzing the microphone signal to detect a proper sequence of code elements spoken by a user as detected by the microphone and to operate the security device in response thereto. The code elements are displayed on the display under processor control in various patterns.