Captcha is a system that uses puzzles or challenges to distinguish between humans and automated bots. It is commonly used on websites to prevent spam, account takeover, and fraud. Without Captcha, online platforms would be vulnerable to various attacks, such as brute force attacks and credential stuffing. By implementing Captcha, websites can ensure that only legitimate users have access to their services.In conclusion, Captcha is an essential tool in safeguarding online security. It serves as an effective barrier against malicious activities and helps maintain the integrity of online interactions. As technology continues to evolve, Captcha will continue to play a vital role in ensuring a safe and secure online environment.。

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