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: 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: Fast Flux: A National Security ThreatCSA: Fast Flux: A National Security Threat4/3/2025
CSA: Control System Defense: Know the OpponentCSA: Control System Defense: Know the Opponent9/22/2022
CSA: Conti Ransomware (March 2022 Update)CSA: Conti Ransomware (March 2022 Update)3/9/2022
CSA: Chinese State Sponsored Cyber TTPsCSA: Chinese State Sponsored Cyber TTPs7/19/2021
CSA: BlackMatter RansomwareCSA: BlackMatter Ransomware10/18/2021
CSA: BADBAZAAR and MOONSHINE: Technical analysis and mitigationsCSA: BADBAZAAR and MOONSHINE: Technical analysis and mitigations4/9/2025
CSA: BADBAZAAR and MOONSHINE: Spyware targeting Uyghur, Taiwanese and Tibetan groups and civil society actorsCSA: BADBAZAAR and MOONSHINE: Spyware targeting Uyghur, Taiwanese and Tibetan groups and civil society actors4/9/2025
CSA: APT5: Citrix ADC Threat Hunting GuidanceCSA: APT5: Citrix ADC Threat Hunting Guidance12/13/2022
CSA: APT28 Exploits Known Vulnerability to Carry Out Reconnaissance and Deploy Malware on Cisco RoutersCSA: APT28 Exploits Known Vulnerability to Carry Out Reconnaissance and Deploy Malware on Cisco Routers4/18/2023
CSA: APT Cyber Tools Targeting ICS/SCADA DevicesCSA: APT Cyber Tools Targeting ICS/SCADA Devices4/13/2022
CSA: 2023 Top Routinely Exploited VulnerabilitiesCSA: 2023 Top Routinely Exploited Vulnerabilities11/12/2024
CSA: 2022 Top Routinely Exploited VulnerabilitiesCSA: 2022 Top Routinely Exploited Vulnerabilities8/3/2023
CSA: 2021 Trends Show Increased Globalized Threat of RansomwareCSA: 2021 Trends Show Increased Globalized Threat of Ransomware2/9/2022
CSA: 2021 Routinely Exploited CVEsCSA: 2021 Routinely Exploited CVEs4/27/2022
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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