Defending Against an Active Threat to Siemens S7 Series PLCs
Executive summary Note: This advisory relates to an active threat to Siemens S7 Series programmable logic controllers (PLCs). However, ongoing PLC targeting ...
US-CERT Alerts
7 articles
Russian State-Supported Cyber Actors Conduct Phishing Campaign Targeting Users of Zimbra Collaboration Suite
Russian State-Supported Cyber Actors Conduct Phishing Campaign Targeting Users of Zimbra Collaboration Suite Executive summary A group of Russian state-suppo...
Improve Router Hygiene to Protect Against Russian State-Sponsored Targeting
Russian Government-Sponsored Activity Targets Poorly Configured and Vulnerable Devices Across Critical Sectors Executive summary Russian Federal Security Ser...
Defending Against China-Nexus Covert Networks of Compromised Devices
Defending against china-nexus covert networks of compromised devices executive summary Defending against China-nexus covert networks of compromised devices E...
Iranian-Affiliated Cyber Actors Exploit Programmable Logic Controllers Across US Critical Infrastructure
Advisory at a Glance Title Iranian-Affiliated Cyber Actors Exploit Programmable Logic Controllers Across US Critical Infrastructure Original Publication Apri...
Pro-Russia Hacktivists Conduct Opportunistic Attacks Against US and Global Critical Infrastructure
Summary Note: This joint Cybersecurity Advisory is being published as an addition to the Cybersecurity and Infrastructure Security Agency (CISA) May 6, 2025,...
CISA Shares Lessons Learned from an Incident Response Engagement
Advisory at a Glance Executive Summary CISA began incident response efforts at a U.S.