CAPTCHAs are those now ubiquitous challenges you encounter to prove that you’re a human and not a bot when you go to log in to many websites. As a computer scientist, I see CAPTCHAs as an effective ...

The goal of the Turing test is for a human to work out whether they're communicating with another person or a machine. Computers have gotten better at imitating people but they've also improved at ...

Why is CAPTCHA still a thing? Some websites require a response to verify human users and block automated bots. Completing these challenges often feels like a waste of time and money. Can’t current ...

Computers can do all sorts of amazing things, from searching the Web at an incredible rate to playing chess at a grandmaster level. Yet some tasks that are easy for people to perform remain remarkably ...

Anyone who has been surfing the web for a while is probably used to clicking through a CAPTCHA grid of street images, identifying everyday objects to prove that they’re a human and not an automated ...

Apple’s Automatic Verification system for websites is getting a big boost from Cloudflare. The web security company just unveiled Turnstile, a free alternative to those irritating CAPTCHA image tests.

Bots have got a lot to answer for. They now make up over half of all internet traffic, and while some, such as Google’s web crawlers and fetchers, have legitimate purposes, nearly two-fifths are ...

CAPTCHA-protected malicious URLs are snowballing lately, researchers said. Cyberattackers are using Google’s reCAPTCHA (aka the “I am not a robot” function) and fake CAPTCHA-like services to obscure ...

A company that makes a security product designed to thwart problems such as comment spam has added new security and customization features for website owners. A company that makes a security product ...