What is CAPTCHA?

CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart.

It is a security feature used on websites to determine whether the user is a human or a computer program attempting to automate tasks, such as creating multiple accounts or submitting spam.

CAPTCHAs typically involve distorted text, images, or puzzles that are easy for humans to solve but difficult for bots.

How does CAPTCHA work?

When a user encounters a CAPTCHA on a website, they are presented with a challenge that requires them to prove they are human.

This can involve typing in distorted text, selecting images that match a certain criteria, or solving a simple math problem.

The website then uses algorithms to analyze the user's response and determine whether they are likely to be human.

Why is CAPTCHA important?

CAPTCHA is important for protecting websites from automated attacks, such as spam bots and password-cracking programs.

By requiring users to solve a CAPTCHA before performing certain actions, websites can prevent malicious activities and maintain the integrity of their platforms.

CAPTCHA also helps to ensure that online interactions are conducted by real users, rather than automated scripts.

Types of CAPTCHA

There are several types of CAPTCHA that websites can implement, including text-based CAPTCHAs, image-based CAPTCHAs, and audio-based CAPTCHAs.

Text-based CAPTCHAs require users to type in distorted text, while image-based CAPTCHAs ask users to select images that meet certain criteria.

Audio-based CAPTCHAs play a series of distorted sounds that users must interpret and enter correctly.

Conclusion

In conclusion, CAPTCHA is a valuable tool for protecting websites from automated attacks and ensuring that online interactions are conducted by real users.

By implementing CAPTCHA challenges, websites can verify the identity of users and prevent malicious activities.

Overall, CAPTCHA plays a crucial role in maintaining the security and integrity of online platforms.