Nicholas Carr says some experts are concluding that attempts to crack "CAPTCHA" security are being done entirely by machines. CAPTCHAs — Completely Automated Public Turing Test to Tell Computers and Humans Apart — are the swirly series of characters users often are asked to type in to gain access to certain areas or do business on Web sites. Carr's post is a response to a Washington Post story that details the issue. In the past, Carr writes, it was thought that people in developing countries were manually typing in character combinations to try to defeat CAPTCHA functions. Recent findings by Websense suggest, however, that the CAPTCHA is being attacked without human intervention, though it is unclear how this is happening. |
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