You have probably seen Captchas - puzzles that ask you to pick out all the bicycles in an image or to decipher letters that are written in squiggly lines. These riddles are designed to let you buy ...

Just about everyone who has ever used the internet has had to check off a Captcha box to prove they aren’t some sort of automated system. Captcha is used to prevent spammers and bots from taking ...

Sometimes it feels like it would be easier to translate hieroglyphics than try and determine what garbled text lies in a CAPTCHA box. We've all been annoyed by it, yet the reason it exists is to keep ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Valve have updated the Steam trading process with a new CAPTCHA box that pops up before the trade ...

Google has begun using image ReCAPTCHAs to simultaneously identify if a visitor is human and what letters or numbers the image contains. Google has begun using image ReCAPTCHAs to simultaneously ...

Absorbing reCAPTCHA, the word-verification Internet security organization, was a natural progression for the Google Book Project. The CATPCHA (Completely Automated Public Turing test to tell Computers ...