August 22, 2003
CAPTCHA-ing the Spammer
From PC Mag a couple of days ago, an interesting article about the use of CAPTCHAs to stop spamming, and how they affect accessibility.
Chances are, you’ve been CAPTCHAd. Since the Internet spam problem reached epidemic proportions several months back, an increasing number of Web-based e-mail services and antispam applications have started using CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) against the online bots spammers so often use to carry out their dirty deeds.