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.

To read our complete series on protecting DoD microelectronics from adversary influence, view our DoD Microelectronics Guidance page.
 

ImageTitlePublication Date
CSA: BlackMatter RansomwareCSA: BlackMatter Ransomware10/18/2021
CSA: Chinese State Sponsored Cyber TTPsCSA: Chinese State Sponsored Cyber TTPs7/19/2021
CSA: Commercial National Security Algorithm Suite 2.0 (CNSA 2.0)CSA: Commercial National Security Algorithm Suite 2.0 (CNSA 2.0)9/7/2022
CSA: Conti Ransomware (March 2022 Update)CSA: Conti Ransomware (March 2022 Update)3/9/2022
CSA: Control System Defense: Know the OpponentCSA: Control System Defense: Know the Opponent9/22/2022
CSA: Hunting Russian Intelligence “Snake” MalwareCSA: Hunting Russian Intelligence “Snake” Malware5/9/2023
CSA: Impacket, Custom Exfiltration Tools Used to Steal Sensitive Information from Defense Industrial Base OrganizationCSA: Impacket, Custom Exfiltration Tools Used to Steal Sensitive Information from Defense Industrial Base Organization10/4/2022
CSA: Infamous Chisel Malware Analysis ReportCSA: Infamous Chisel Malware Analysis Report8/31/2023
CSA: Iranian Government-Sponsored Actors Conduct Cyber OperationsCSA: 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 OperationsCSA: Iranian Islamic Revolutionary Guard Corps-Affiliated Cyber Actors Exploiting Vulnerabilities for Data Extortion and Disc Encryption for Ransom Operations9/14/2022
CSA: IRGC-Affiliated Cyber Actors Exploit PLCs in Multiple Sectors, Including U.S. Water and Wastewater Systems FacilitiesCSA: IRGC-Affiliated Cyber Actors Exploit PLCs in Multiple Sectors, Including U.S. Water and Wastewater Systems Facilities12/1/2023
CSA: Mitigating Log4Shell and Other Log4j-Related VulnerabilitiesCSA: Mitigating Log4Shell and Other Log4j-Related Vulnerabilities12/22/2021
CSA: New Sandworm malware Cyclops Blink replaces VPNFilterCSA: New Sandworm malware Cyclops Blink replaces VPNFilter2/23/2022
CSA: North Korea Using Social Engineering to Enable Hacking of Think Tanks, Academia, and MediaCSA: North Korea Using Social Engineering to Enable Hacking of Think Tanks, Academia, and Media6/1/2023
CSA: Ongoing Cyber Threats to U.S. Water and Wastewater SystemsCSA: Ongoing Cyber Threats to U.S. Water and Wastewater Systems10/14/2021
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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