How does the CAPTCHA know that it was filled in by a human? And what does the term even stand for? Let’s clear up this mystery. The word CAPTCHA stands for “completely automated public Turing ...

When you visit a webpage, you might see a CAPTCHA to make sure you’re a real person and not a bot. These usually involve jumbled words, some recognizable images or just a box that says ...

The goal of CAPTCHA is to pose a question or task which is impossible for the computer to complete while also being easy for humans. Take for example the distorted word CAPTCHA type which shows an ...

Captchas are well known for keeping automated spammers out and letting humans in. However, ReCaptcha is a rather clever service using them to help digitize books scanned into the Internet Archive ...

If you delete all your Google cookies, the CAPTCHA will likely ask you to fill in a two-word CAPTCHA. If you are using a form of anti-fingerprinting plugin, Google will likely ask you to fill in a ...