FortiBleed: The Most Detailed Breakdown Yet of an Active Russian Credential-Harvesting Operation
FortiBleed targeted 430,000+ FortiGate devices, harvesting 110M credentials and enabling breaches through large-scale credential theft.
Operation FortiBleed
First seen: 2026-06
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FortiBleed Exposes Global Credential-Spraying Operation
FortiBleed exposed a massive campaign that made billions of login attempts against Fortinet VPNs, compromising organizations worldwide. FortiBleed wasn’t a t...