3. The computer system of claim 1 , wherein the homophone CAPTCHA user interface further comprises playable audio data corresponding to the phrase of words including the homophone.
3. The computer system of claim 1 , wherein the homophone CAPTCHA user interface further comprises playable audio data corresponding to the phrase of words including the homophone. 4. The computer system of claim 3 , wherein the received selection of at least one of the options associated with the homophone CAPTCHA user interface comprises a typed and/or spoken selection.