Spammers beat new Microsoft CAPTCHA defences
Security firm Websense has claimed that new CAPTCHA techniques reworked by Microsoft at the end of last year have already been busted by spammers.
CAPTCHA (Automated Public Turing Test to tell Computers & Humans Apart) was developed in 2000 to stop spam robots. Websense said that recent Microsoft efforts to rework it and achieve a balance between security and usability had failed.
The problem was that every time Microsoft tried to implement CAPTCHA changes to prevent spammers from breaking in and getting control of accounts, the criminals managed to adapt and beat them.
