What is Cerberus?

Cerberus is a multi-headed dog in Greek mythology that guards the gates of the Underworld to prevent the dead from leaving. The name "Cerberus" is often used metaphorically in technology to refer to systems that act as a strong security measure, gatekeeper, or multi-layered defense. It commonly describes a system designed to control access, manage authentication, and protect against unauthorized entry or data breaches. For example, it can refer to a multi-factor authentication system, a comprehensive network security suite, or a data loss prevention strategy.