FortiGate Firewalls Exploited in Wave of Attacks to Breach Networks and Steal Credentials

A series of intrusions in early 2026 in which threat actors compromised FortiGate Next-Generation Firewalls (NGFW) to establish persistent footholds within enterprise environments. Each case was intercepted during the lateral movement phase before the attackers could fully achieve their objectives. The attack wave uncovered by SentinelOne closely tracks three high-severity Fortinet vulnerabilities disclosed between December […]

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