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Captcha-22: When online security hurts sales

Feb 1, 2013
Ticketmaster is ditching those hard-to-read letters and numbers, called captchas, that users must decipher to make a purchase. It's switching to images, which are easier, faster and more secure.

Captchas help preserve old texts

Mar 29, 2011
When you go online and have to determine a captcha word, it's likely that word is from an old text that's been digitized. When old texts are digit...