After this lesson, you will be able to: Recognize behavioral indicators of insider threats and the controls that mitigate them.
Insiders, current/former employees, contractors, partners, already have access. The leak isn't a hack; it's misuse. Detection requires behavioral analytics, not just signatures.
Malicious, disgruntled, financially motivated, espionage. Negligent, bypass controls for convenience. Compromised, credentials stolen, attacker acts as them.
1. Least privilege, they can't leak what they can't access.
2. Separation of duties, no single person can complete sensitive workflows alone.
3. Privileged Access Management (PAM), record + review admin sessions.
4. UEBA, flag behavioral anomalies.
5. Exit procedures, revoke access *immediately*, not 'next sprint'.
Edward Snowden was a sysadmin with access far beyond his role. The NSA's failure was access design, not detection. Least privilege is the cheapest, highest-impact control.
Choose one.
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