Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] Object Oriented MUDMultiple User Dialog (MOO), as security administration tool 2nd 3rd object-capability model, secure interaction design observability, criterion for designing challenge questions systems one-time password (OTP) online banking, selecting authentication mechanism, example online tools, remote data collection/system evaluation open answers/questions, challenge questions systems OpenPGP message format operating systems as security constraint embedding sanitization technology in opinion-based questions, challenge questions systems OTP (one-time password) overwriting files with Save As command |