Not only are they super annoying, but it turns out text-based CAPTCHAs are also potentially a security risk. Researchers from security firm F-Secure have figured out how to use AI to trick Microsoft Outlook‘s text-based CAPTCHA into thinking a human solved it. In a blog post, the security experts explained the biggest challenge wasn’t correctly labelling the text, but mimicking the keystrokes a human would make when submitting the answer. Considering their past experience in cracking text-based CAPTCHAs, the researchers were confident the mechanism protecting Microsoft’s Outlook Web App portal wouldn’t stand a chance. It turns out they were wrong.… This story continues at The Next Web Or just read more coverage about: Microsoft