Saturday, March 30, 2013

Bizarre CAPTCHAs

We all understand the security benefits of using a CAPTCHA as it relates to anti-automation in a web application.  The most common implementation of CAPTCHA functionality is reCaptcha, a technology that Google purchased in 2009.  Most of the time it works great, but recently I ran across a site that was producing some bizarre images.  I saved a few of these, and I'm pleased to present them here now for your enjoyment!

Hmm, I don't have some of these letters on my keyboard:




Users are expected know calculus now?

If a word is upside down, would you enter it left to right or right to left?




Absolutely no clue:



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