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We all know Captchas (the "enter the characters you see in the image" to prevent automatice registration or whatnot). Scientists have devised quite a novel idea on how the same technology can be used to digitize old books:
However, spammers haven't sat still either, and found an original way of circumventing Captchas:
Jörg
However, spammers haven't sat still either, and found an original way of circumventing Captchas:
Jörg