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Distorted security codes

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Carol Anne | 20:51 Tue 25th Apr 2006 | Technology
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Occasionally on ebay or other secure sites, you are asked to key in a code shown on the screen as jumble of letters or numbers. Anyone know what purpose this distortion serves?


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Avatar Image LazyGun
I always understood that it was to ensure that there was a live person at the other end, rather than some automated scripting programme or similar
20:54 Tue 25th Apr 2006
Avatar Image fo3nix
LazyGun's right.

It's called a captcha, and details of them can be found here:
http://en.wikipedia.org/wiki/Captcha
21:04 Tue 25th Apr 2006

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