Image spam gets a makeover

Security experts warn about a technique that can be used to get past optical character recognition filters. The good news? The solution may be free.

Captcha techniques - the wavy letters you have to decipher before continuing with your e-mail, for example - have traditionally been used for security purposes. But some spammers are spinning it around, using captcha to actually send spam.

» it business - Vawn Himmelsbach - 29-01-2007

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