NSA Cybersecurity Advisories & Guidance


NSA leverages its elite technical capability to develop advisories and mitigations on evolving cybersecurity threats.

Browse or search our repository of advisories, info sheets, tech reports, and operational risk notices listed below. Some resources have access requirements.

For a subset of cybersecurity products focused on telework and general network security for end users, view our Telework and Mobile Security Guidance page here.

ImageTitlePublication Date
 CSA: Conti Ransomware (March 2022 Update)3/9/2022
 CSA: Control System Defense: Know the Opponent9/22/2022
 CSA: Iranian Government-Sponsored Actors Conduct Cyber Operations2/24/2022
 CSA: Iranian Islamic Revolutionary Guard Corps-Affiliated Cyber Actors Exploiting Vulnerabilities for Data Extortion and Disc Encryption for Ransom Operations9/14/2022
 CSA: Mitigating Log4Shell and Other Log4j-Related Vulnerabilities12/22/2021
 CSA: New Sandworm malware Cyclops Blink replaces VPNFilter2/23/2022
 CSA: Ongoing Cyber Threats to U.S. Water and Wastewater Systems10/14/2021
 CSA: People’s Republic of China State-Sponsored Cyber Actors Exploit Network Providers and Devices (June 2022)6/7/2022
 CSA: Protecting Against Cyber Threats to Managed Service Providers and their Customers5/11/2022
 CSA: Protecting VSAT Communications (May 2022 Update)5/10/2022
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Additional Documents

Some guidance is protected and requires use of a DoD Common Access Card (CAC) to access. Visit https://cyber.mil/nsa/cybersecurity-advisories-and-technical-guidance/ to access the following and other protected documents:

  • Avoid Dangers of Wildcard TLS Certificates and the ALPACA Technique (FOUO version)
  • Protecting VSAT Communications
  • Quantum Security of Symmetric Cryptography and Hash Functions: A Review
  • Securing AWS S3
  • Security Considerations for Office 365 Government Customers