What's with the "type in the letters above" messages?

You know when you are trying to sign up for something online, and sometimes a box with weird distorted letters come up and it tells you to type in the letters that you see into the space below. I never understood the purpose of that step.

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  • 1 decade ago
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    it is an anti spam system, so a computer can't automatically fill in the detail's for something like signing up for something. you have to identify the letters and type them in (which is sometimes hard to do).

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