The US Cybersecurity and Infrastructure Security Agency (CISA) says a red team exercise at a certain unnamed federal agency in 2023 revealed a string of security failings that exposed its most critical assets. CISA calls these SILENTSHIELD assessments. The agency's dedicated red team picks a federal civilian executive branch (FCEB) agency to probe and does so without prior notice – all the while trying to simulate the maneuvers of a long term hostile nation-state threat group. According to the a...