Glossary: Threat Vectors: Files, Networks and Endpoints

CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart)

Also written: CAPTCHA, CAPTCHAs

A small web test that a person should pass and a program should fail, such as 'I'm not a robot'. Attackers fake it to make people run commands, or place a real one in front of a phishing page to block security scanners.