Can captchas expose hidden services? And how?

1. How does CAPTCHA help in security?
2. How CAPTCHA prevents data corruption and spam?
3. What is CAPTCHA and how does it work?
4. What is CAPTCHA used to avoid?

How does CAPTCHA help in security?

CAPTCHA offers protection from remote digital entry by making sure only a human being with the right password can access your account. CAPTCHA works because computers can create a distorted image and process a response, but they can't read or solve the problem the way a human must to pass the test.

How CAPTCHA prevents data corruption and spam?

Quite simply, CAPTCHA works by asking end users to perform some task that a software bot cannot do. If the user can do the task correctly, it provides authentication to the service that the user is a human being and not a spambot and allows the user to continue.

What is CAPTCHA and how does it work?

What is CAPTCHA. CAPTCHA stands for the Completely Automated Public Turing test to tell Computers and Humans Apart. CAPTCHAs are tools you can use to differentiate between real users and automated users, such as bots. CAPTCHAs provide challenges that are difficult for computers to perform but relatively easy for humans ...

What is CAPTCHA used to avoid?

The CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart), was originally designed to prevent bots, malware, and artificial intelligence (AI) from interacting with a web page. In the 90s, this meant preventing spam bots.