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MJ Ray wrote: > Jonathan Rochkind <[log in to unmask]> wrote: [...] >> And then fails. Anyone managed to do this, or have any other advice for >> using Recaptcha from perl? > > Please don't use it as a barrier on the only access route to a > service, else you will be locking out humans with vision or hearing > problems, or even simply high browser security settings. > Does anyone know anything concrete about "cognitive" captchas? I've run into anecdotal support for things like: Enter the word "orange" <input name="foo"> Or: Enter the number that answers: How much is two plus two? <input name="foo> Or even: Leave this input blank: <input name="email">... Are these known to work? Or are they just clever guesses about what bots might not be able to figure out? -- Thomas Dowling [log in to unmask]