Skip to content

Glossary: Security Fundamentals

APT (advanced persistent threat)

Also written: APT, advanced persistent threat, APTs

A skilled, well-funded attacker, usually state-sponsored or a top criminal group, who stays inside a target for months or years in pursuit of a specific goal such as espionage. APTs often get in through suppliers or MSPs and live off the land.

Where the book teaches it

Related terms

State-sponsoredLiving off the landSupply chain attackEspionage