CAPTCHA programs that are used to determine whether a site visitor is a person or a bot come in pretty standard formats. Think text distortion (where ...

I feel like I’ve gone from trying to identify how many squares in a grid contain ... and numbers as Captcha tests? Well, they ...

What makes this version unique, however, is that you aren't just playing in a browser window, but in a CAPTCHA window ... and not an automated bot. Some of the earliest CAPTCHAs asked you to ...

CAPTCHAs are designed to prevent automated software (bots) from doing things like ... you probably saw a CAPTCHA. It is ...

While CAPTCHA tests are everywhere, helping to determine whether a website is being accessed by a real person or a bot, it's extremely unlikely that this version of a CAPTCHA will ever be used as ...