Captchas

RIM patent uses motion, CAPTCHAs to stop texting while driving, shows a fine appreciation of irony
By J. Fingas, 07.11.2012
PlayThru hopes to kill text captchas with game-based authentication
By S. Silbert, 05.03.2012
Stanford program cracks text-based CAPTCHAs, shelters the replicants among us
By J. Hicks, 11.02.2011
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