FortiBleed 2026: What to Do If Your FortiGate Is Compromised

If your company uses FortiGate and didn't patch FortiBleed vulnerabilities in time, assume compromise until forensic analysis proves otherwise. The correct protocol does not start with patching: it starts with evidence preservation — exporting full logs before touching anything — then verifying whether attacker accounts or persistence mechanisms are active, and only then remediating. Skipping this order is the mistake most affected companies make, allowing threat actors to maintain access for weeks or months through admin accounts created before the patch was applied.