Red Team

“Red teaming is normally associated with assessing vulnerabilities and limitations of systems or structures. Various watchdog agencies such as the Government Accountability Office and the National Nuclear Security Administration employ red teaming. Red teaming refers to the work performed to provide an adversarial perspective, especially when this perspective includes plausible tactics, techniques, and procedures (TTP) as well as realistic policy and doctrine.”

https://en.wikipedia.org/wiki/Red_team