Defending Against an Active Threat to Siemens S7 Series PLCs
Executive summary Note: This advisory relates to an active threat to Siemens S7 Series
#StopRansomware: Gunra Ransomware
Advisory at a Glance Title #StopRansomware: Gunra Ransomware Original Publication August 10, 2026 Executive
CISA Urges Water and Wastewater Systems Sector to Protect OT Against Activity Targeting PLCs
CISA is currently observing a significant increase in cyber threat actors targeting programmable logic
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
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
CISA Urges Hardening Fortinet Devices After Reports of Credential Exposure
CISA is aware of global reports that malicious cyber actors have targeted internet-accessible Fortinet
Supply Chain Compromises Impact Nx Console and GitHub Repositories
CISA is prioritizing the response to multiple emerging software supply chain intrusion campaigns targeting
FIRESTARTER Backdoor
Malware Analysis Report at a Glance Malware Name FIRESTARTER Original Publication April 23, 2026
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
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