Fortinet Warns of Active FortiBleed Credential Theft Attacks on FortiGate Devices

Fortinet has issued a security warning about ongoing credential-harvesting attacks targeting FortiGate devices in a campaign known as “FortiBleed.” Threat actors are exploiting weak authentication practices rather than any newly disclosed vulnerabilities. A PSIRT advisory released on June 19, 2026, by Carl Windsor indicates that the attackers are reusing previously exposed credentials from earlier incidents, […]

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