A pair of researchers at Stanford University have created a computer program capable of cracking CAPTCHA codes, the widespread security system used by websites to determine whether a user is actually ...

Completely Automated Public Turing tests to tell Computers and Humans Apart (CAPTCHA) systems, originally presented distorted text that users had to decipher and input correctly, relying on human ...

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 advertisements and links that add no ...

All: In a further effort to deter spam, Roanoke.com has added a "captcha" code bar for readers to type in before they enter a comment. We hope these human-readable images will thwart the loathsome ...

We see the popular "captcha" security mechanism often - wavy letters websites ask us to type into a box. It's used by web pages and newsletter sign-up forms to prevent computer robots from hacking ...

An “offensive” security code that appeared on a state website used to schedule COVID-19 tests was an error, the Georgia Department of Public Health says. The issue was made public Wednesday after an ...