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Weird but true

by gaal (Parson)
on Aug 23, 2004 at 18:28 UTC ( #385177=note: print w/ replies, xml ) Need Help??


in reply to Image Verification Program

It's a pretty effective technique, but I've seen reports (sorry, can't find any links right now!) of insidious spammers putting up fake pr0n sites with "verification" pages that are actually stolen from sites they want to spam; they are in effect exploiting visitors they attract to their site for a sort of proxy computation.


Comment on Weird but true
Re: Weird but true
by adrianh (Chancellor) on Aug 24, 2004 at 09:40 UTC
    It's a pretty effective technique

    Depends what you're protecting. In general I've found the opposite - even ignoring the accessibility issues. For two reasons:

    • These things can be read by computers if somebody clever is coding them. Noticed how much more distorted the images on Yahoo are getting? Now I'm getting them wrong more often than not and I have pretty close to perfect vision (in one eye anyway :-). Escalation can only lead to images that more and more people with "normal" sight have problems with.
    • There are hacks to get around them. The fake-registration technique you mentioned is in wide use now. For anything that involves even a small dollar value for getting a registered account the Evil Person hires sweatshop labour that just sits there and registers accounts eight hours a day.
      It's It used to be a pretty effective technique :(

      Arms races suck.

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