T0Offensive Security Fundamentals
Assumed breach
Why modern offensive security starts from the premise that the attacker is already inside, and what that changes about how you test.
Intermediate4 min readassociate streamUpdated Sat Aug 01 2026 00:00:00 GMT+0000 (Coordinated Universal Time)
Part ofGold Path (SOCP)
Learning objectives
- Explain the assumed-breach premise and why it replaced the castle-and-moat model.
- Contrast a traditional perimeter test with an assumed-breach engagement.
- Identify the metrics an assumed-breach test really measures.
- Describe how AI accelerates the interior work without owning the decisions.
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