Advanced Persistent Threat (APT)
What is Advanced Persistent Threat (APT)?
An Advanced Persistent Threat is a well-resourced, targeted attacker that quietly gains access to an environment and maintains long-term, covert presence to steal information or disrupt operations.
Examples
- A tailored spear-phish gets one foothold; over weeks the intruder steals credentials, learns the network, and slowly exfiltrates design files.
- A compromised software update at a supplier installs a backdoor; the attacker uses the trusted channel to reach many customers.
Discover 🔎
APT actors don’t rush. They pick a target, study it, and enter with as little noise as possible. The word advanced refers to planning, tooling, and resources; persistent means they work to keep access for months; threat reminds us the goal is real harm—espionage, theft, or disruption.
Summary 📝
An APT is a patient, goal-driven adversary. They enter quietly, learn the environment, add multiple ways to stay, and move only when it’s safe. You counter them by making identity strong, movement hard, and weak signals visible—and by practicing complete eviction that covers devices, identities, and cloud credentials.
Tip: The interactive version includes progress tracking, decks, and premium deep dives.