• 31Oct

    Lately there’s been a considerable increase of information regarding Captcha’s code cracking as more and more spam bots and hackers find their ways to bypass Capchas. Actually, one doesn’t have to be a sophisticated robot in order to crack a complicated Captcha. It can just make hundreds attempts to decipher a Captcha until it reaches full success.

    A bot spammer is never tired of doomed attempts. A bot spammer never gets frustrated when it fail.
    As for human users, I, myself, get pissed off with Captcha after the third attempt.
    If I fail to decipher a Captcha three or four times, I simply give up!

    That brings me to the following idea: Wouldn’t it be wiser to set a limit to Captchas wrong attempts? Let’s say after 5 attempts the user is blocked and can no longer activate a false account? This suggestion enables Captcha to function as a spam blocker right from the beginning!
    Yes, I know it denies accessibility for human users, but than it stops spammers from endless cracking Captchas attempts.
    I believe that under the circumstances less human users are preferable.

    Massive bot spammers are less desirable but you know what people say: Sometimes – less is more.

  • 10Oct

    I’ve just read an article on online “Network World” by Brad Reed dated 10/01/09 saying that hackers have found a way to crack Facebook’s Captchas and create false accounts. Those accounts are used for spreading spy ware phishing credit cards and other valuable information from innocent users.

    Those rogue accounts show a picture of a woman and the moment one clicks on her video profile – it activates the spyware.

    Facebook states it’s doing its best to eliminate false accounts ‘though it’s not easy to detect them. As a matter of fact, anyone can bypass Facebook’s Captacha code simply by googling a Youtube video tutorial which shows step by step how to remove facebook’s Captcha’s code.

    I guess the nice thing in this story is the fact that Facebook, the great social network, has joined Google, Yahoo and Hotmail – all targets for spammers attack.

    Once again it has been proved that captcha should be improved constantly  if it’s into serving as a reliable spam blocker as well as a security system.

    You can read more about Facebook Captcha Attack here

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