Most security strategies are built around prevention.The implicit assumption is that attacks can be stopped early enough to avoid impact.
In practice, this assumption fails under several conditions:
- Mobile endpoints
- Credential reuse
- User-driven exposure
- Long-lived sessions
When prevention becomes unreliable, the architectural goal shifts.The question is no longer “How do we stop this?”It becomes “What still works after this breaks?”
This shift changes how systems are designed, evaluated, and operated.