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FIRESTARTER Backdoor Hit Federal Cisco Firepower Device, Survives Security Patches
lowmalware2026-04-24T17:06:00+00:00source excerpt
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The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has revealed that an unnamed federal civilian agency's Cisco Firepower device running Adaptive Security Appliance (ASA) software was compromised in September 2025 with malware called FIRESTARTER.