
Here is the list of captchas that are used to prevent bots and allow Human access, Image to Text captcha: The captcha technology is being developed and improved each time in such a way that the hackers don’t find a way to use auto bots to crack it. Types of captchas – Examples of captchas:Īs technology develops, so does the hackers find ways to misuse technology. Social media sites such as Facebook, Twitter uses captcha to eliminate hackers steal the sensitive information of Facebook.Captchas are used in web applications like Booking, SEO tools, PTC sites, Online banking, etc.The captchas are used in internet banking websites to stop brutal attacks made to steal sensitive information like passwords, PINs, etc.Captcha plays an important role to stop those bots.

