The U.S. National Security Agency and the Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency have issued a joint alert urging critical infrastructure operators to take immediate measures to reduce the exposure of operational technology (OT) systems to cyberattacks. The NSA and CISA say it’s imperative that critical infrastructure asset owners and operators secure industrial control systems (ICS) and other OT systems due to the high risk of cyberattacks launched by foreign threat actors. The agencies say industrial systems are being increasingly exposed to the internet for remote operations and monitoring purposes, expanding the outsourcing of key skill areas,...