Not to mention the use case where a new user signing up types in an
already in use PIN and is informed "That PIN is in use, please choose
another"...

...assumes you only need a PIN to log in...

On Thu, 3 Jan 2008 13:29:22 -0800, Greg Young <[EMAIL PROTECTED]>
wrote:

>Wow that sounds like a really bad idea (the searching of the pin).
>Let's try attacking it, I delete my cookie go to the site and enter a
>pin (either I get in or I don't :))
>
>Let's assume a small user base of 1000 users ... still a 10% chance
>per try (those add up quick :))

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