Re: Defeating CAPTCHA

[Devdas Bhagat <devdas () dvb homelinux org>]

On 29/08/05 08:03 -0400, Derick Anderson wrote:
> I'm sure there is a significant number of valid credit card numbers
> floating around in the open, but it is not without bound. An open, free
> system (which I am not against, by the way) allows spammers to create as
> many accounts as they wish. Once they have to pay for it, even with
> stolen credit cards, the availability of accounts drops into a much
> smaller finite number. Besides, if I have your credit card number, why
> bother using it to create a spamming account? I've already got free
> money. =)

Think 419 scammer. I buy a domain, host it and spam using that domain.
It appears legitimate, and will not be immediately kicked off a host. 
Freemail accounts are terminated fast (not fast enough, but fast).

Think of a scammer using confirm-paypal.com instead of
http://some.free.host.example.com/user/confirm-paypal.html

The problem for us is that a smaller, finite number is still bigger than
we can easily and economically handle.

Devdas Bhagat