We are happy to report that Zone BBS, a popular text based bulletin board system in the blind community, has switched from an audio / visual CAPTCHA scheme to THaCAA – Telling Humans and Computers Apart Automatically to ensure the security of its account registration process. Whereas the previous scheme excludes users who happen to be deaf-blind, the new text based system includes everyone. Although no CAPTCHA test is perfectly accessible or secure, we hope the new implementation will prove to be sufficiently robust for the needs of the Zone BBS.