A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot. For example, humans can read distorted text as the one shown below, but current computer programs can't:
This is absolute bullshit. Captchas are the most annoying and maddening "protection" I can imagine. More often than not once you have typed the damned distorted text, you are told you didn't do it right and another equally annoying captcha appears. Many times I just give up since there is no satisfying whoever has devised this idiotic test. Also more often than not, the captcha appears after you have typed your complaint, comment, or request. And when you don't get the captcha exactly right, your text disappears and you have to start all over again. I will never use another website that requires a captcha. Note: the two words shown here are relatively clear and nothing like the complex captchas you are more likely to be cursed with,
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