Add Yahoo as a preferred source to see more of our stories on Google. A captcha is a security test that verifies a user's identity as human. CAPTCHA stands for "Completely Automated Public Turing test ...

A researcher found a host of vulnerabilities in Yarbo garden robots that could expose Wi-Fi passwords, hijack cameras, and run over their owners on command.

That innocent little checkbox could be the digital equivalent of opening your front door to a guy holding a gun.