Yahoo uses CAPTCHA to prevent bot (automated computer program) posing as human and signing up for a new account. CAPTCHA does the protection by presenting a text (in an image) that is easy to comprehend for human but difficult for the bots.
But recently, a group of Russian security researchers claimed that they've found a way to compromise the security system, and that means a high possibility of spam coming from Yahoo or other mail provider that uses CAPTCHA.
If you interested to test the program, you can download it here.
Ugly side of CAPTCHA...
ReplyDeleteI’ve mentioned this issue before in the blogger.com post looks like since that day and captcha have memorized my ip and since that day I’ve been facing weird and strange forms of captcha . for example like when you post comment in some bl...
Really funny CAPTCHA you have there, I love the "solve Riemann Hypothesis" :)
ReplyDeleteyeah captcha can get some times tricky ..
ReplyDeletebut i think there is some other antispamming solutions better than captcha .
these other solutions won't kill the users the way captcha does :)
@ameo:
ReplyDeleteYep, I don't know why they need to create such a cryptic symbol as the protection, is it possible for a spammer to extract an information from an image? If it isn't then why bother making it that hard, right?
they are just fame loving people
ReplyDeletewhen rapidshare first got these cats it got lots of traffic for people who want just to see the cats , the same with Stumbleupon ..
any hacker can get it and bots can't see images .then whey making it so hard !
thanks got wordpress doesn't approve certain trash :)
There's a rumour that Rapidshare has removed its captcha, any valid links about this?
ReplyDelete