Tier 4
Nation-state / APT
Resources / capability
Top-tier — custom tooling, stealth, espionage, pre-positioning, destructive operations. Patient.
Typical targets
Government, defense industrial base, critical infrastructure, high-value IP holders.
Most relevant defenses
- threat intelligence
- advanced detection engineering
- BAS / validation
- identity governance
- OT security
- IR retainers
Note · Most orgs are not in this threat model. If you are, you know.