FIRESTARTER Backdoor on Cisco ASA: New APT Campaign Targets Network Perimeter Devices
In September 2025, a U.S. civilian federal agency became the victim of a highly targeted network perimeter attack involving a compromised Cisco Firepower firewall running Adaptive Security Appliance (ASA) software. According to a joint advisory from the U.S. Cybersecurity and Infrastructure Security Agency (CISA) and the UK National Cyber Security Centre (NCSC), the incident centered … Read more