Adding a CAPTCHA to a Blogspot. One of the unfortunate side effects of leaving articles on your Blogspot blog open for comments is that you may occasionally receive spam -- comments containing ...

Traditional CAPTCHA is steadily losing favor on the Internet, proving continually frustrating to well-intentioned users and easily exploitable to malicious hackers and spammers. A startup called ...

A core security mechanism that keeps us all safe online is likely to fail within the next few years. This could cause a massive rekeying of websites and big shifts in how we approach online ...

With the reCAPTCHA experiment, Google presents users with one set of distorted text characters and one random digital picture of a street-address number extracted from Street View, the popular ...