Captcha (2024)

FAQs

What did CAPTCHA mean? ›

CAPTCHA is an acronym that stands for "Completely Automated Public Turing test to tell Computers and Humans Apart." Users often encounter CAPTCHA and reCAPTCHA tests on the Internet. Such tests are one way of managing bot activity, although the approach has its drawbacks.

A CAPTCHA test is made up of two simple parts: a randomly generated sequence of letters and/or numbers that appear as a distorted image, and a text box. To pass a the test and prove your human identity, simply type the characters you see in the image into the text box.

Examples include Google's reCAPTCHA, which features distorted letters and numbers, and Cloudflare's CAPTCHA, which includes simple arithmetic problems. This type of CAPTCHA displays an image that contains a specific object or shape, and the user must identify the object or shape in the image.

reCAPTCHA support

Unfortunately it may happen to good users like you for a few reasons: You may be on a shared network that is being used abusively. Your internet service provider may have recently assigned you a suspicious IP address. The site you are trying to access may be currently under heavy attack.

One way you can prevent CAPTCHAs is to choose a VPN that offers dedicated IPs. When you get a dedicated IP, no one else has access to the IP. This prevents CAPTCHAs because it removes the red flag of your IP constantly changing and performing multiple simultaneous requests.

The overwhelming benefit of CAPTCHA is that it is highly effective against all but the most sophisticated bad bots. However, CAPTCHA mechanisms can negatively affect the user experience on your website: Disruptive and frustrating for users.

CAPTCHAs risks can contribute to client-side attacks

Exploitable issues included cross-site scripting (XSS), cross-site request forgery, SQL injection, brute-force protection bypass, and arbitrary web scripts execution.

Word problems CAPTCHA is one of the most common types of CAPTCHA; you might see it at least once a day on various sites. This type of CAPTCHA asks you to type the letters displayed on the screen; this may sometimes contain a combination of letters and numerals.

CAPTCHA also works to prevent spammers and hackers from inserting malware into online forms. So, CAPTCHAs are also used to defend against the following types of online threats: Denial of Service (DDoS) attacks.

Why am I suddenly getting CAPTCHA on every site? ›

That means it's a browser issue, that is your browser is not sending enough important data to tell the system it's a legit user. Instead the system think it's a bot or spam to try to stop you with captcha.

It is a security measure designed to prevent automated bots from performing certain actions, such as spamming or performing brute-force attacks. However, if a CAPTCHA is poorly designed or implemented, it could potentially be exploited by attackers to bypass security measures.