Inside FortiBleed: Reverse Engineering the CyberStrike Harvester Behind a Global FortiGate Credential Factory (opens in new tab)

Summary FortiBleed is a large-scale credential compromise campaign that targets internet-facing Fortinet FortiGate firewalls and SSL VPN gateways. The campaign does not depend on a malware payload; instead, it uses a credential pipeline that utilizes credential stuffing, password spraying, configuration harvesting, offline cracking, and post-authentication capture processing. While investigating this campaign, we reverse-engineered a recovered ... Inside FortiBleed: Reverse Engineering the Cy...