Re: [tlug] CAPTCHA on keitai

["Josh Glover" <jmglov@example.com>]

On 17/03/2008, Stephen J. Turnbull <stephen@example.com> wrote:

>  I think the best way to treat captchas is to assume that for a while
>  even a trivial catcha will do fine.

It is an economics problem (sound familiar? most problems are), of
course. If your CAPTCHA is not one of the big ones, it won't really be
worth anyone's time to break it.

That is why Jeff Atwood suggests copying the techniques used by Google
and Yahoo!, but implementing it yourself and adding some variation.
That way, you don't automatically get cracked when the bots break the
big boys' CAPTCHAs, but you do get to use their trial and error to
your benefit.

-- 
Cheers,
Josh