Wednesday, December 01, 2004

The CAPTCHA game. One of my co-panelists yesterday at the Gilbane Conference was Matt May, a Web accessibility specialist with the W3C. Afterward Matt told me about his paper on CAPTCHA, the Carnegie Mellon project whose acronym expands (sort of) to "completely automated public Turing test to tell computers and humans apart." The images shown to the right, which come from Yahoo's registration page, are familiar examples of the technique. If it's been a while since you've visited that page, you may find these visual puzzles more challenging than you remember. I think that's probably because they are. According to Matt, the arms race between puzzle makers and puzzle breakers has been heating up. ... [Jon's Radio] 10:13:55 PM    comment []