FORT MEADE, Md. – The National Security Agency (NSA) has joined the Federal Bureau of Investigation (FBI) and other co-sealers to publish a Cybersecurity Advisory (CSA), “Russian Cyber Actors Use Compromised Routers to Facilitate Cyber Operations,” outlining observed tactics, techniques, and procedures (TTPs), indicators of compromise (IOCs), and mitigation recommendations for EdgeRouter users and other network defenders.