← Security+ glossary

Threat actors and vectors

Insider threat

A threat that comes from a person with legitimate access to the system, such as an employee, contractor or business partner. It is especially dangerous because such an actor already has access behind the external defenses and knows the internal processes, so they can cause damage even with modest resources.

All Security+ guides →

Related terms

Get CertOwl on the App Store

Free download · A+ and Network+ completely free
+ daily lessons, flashcards and full exam simulations