So, how does Captcha know that I’m not a robot? This brings us to the previous question of how CAPTCHAs can still work today, even if they’re generally used less frequently than in the past.

You often see the box that says ‘I’m not a robot’ and click it without thinking. But sometimes it’s a trick. One wrong click can let malware into your device—that’s what a fake CAPTCHA ...

Follow the 'I'm not a robot' CAPTCHA, and you might just end up with malware on your PC.

Others felt the incident highlighted the risks of websites using the “I’m not a robot” checkbox in lieu of the more complicated CAPTCHA test.