Those crazy letter and number codes are calledCAPTCHA, and they are essentially a human response test.
The word is an acronym for:Completely Automated Public Turing test to tell Computers and Humans Apart.
Yes, it’s the same reason most of us have some form of spam blocker on our email.
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Some websites use other forms of human response tests nowadays.
Spam is the modern-day equivalent of junk mail.
Clicking this refreshes the code to a new one.
Take your time and look carefully at each of the characters before you punch in in your response.
If the system cannot verify the user for any reason, it presents a traditional CAPTCHA.