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
DDD-190719-576-004.PDFInfo Sheet: NCTOC Top 5 Security Operations Center (SOC) Principles (March 2018)3/29/2018
DDD-200709-749-028.PDFInfo Sheet: Operating on a Compromised Network (July 2014)7/1/2014
Info Sheet: Segment Networks and Deploy Application-Aware Defenses (September 2019)Info Sheet: Segment Networks and Deploy Application-Aware Defenses (September 2019)8/30/2019
Info Sheet: Selecting a Protective DNS Service (May 2021 Update)Info Sheet: Selecting a Protective DNS Service (May 2021 Update)5/31/2021
DDD-190716-715-072.PDFInfo Sheet: Steps to Secure Web Browsing (May 2018)5/1/2018
Info Sheet: Top 10 Mitigation Strategies (March 2018)Info Sheet: Top 10 Mitigation Strategies (March 2018)7/16/2019
Info Sheet: Transition to Multi-Factor Authentication (August 2019)Info Sheet: Transition to Multi-Factor Authentication (August 2019)8/30/2019
DDD-190716-676-073.PDFInfo Sheet: UEFI Advantages Over Legacy Mode (March 2018)3/1/2018
DDD-190716-162-074.PDFInfo Sheet: UEFI Lockdown Quick Guidance (March 2018)3/1/2018
DDD-190716-995-075.PDFInfo Sheet: UNFETTER (March 2018)3/1/2018
Info Sheet: Update and Upgrade Software Immediately (August 2019)Info Sheet: Update and Upgrade Software Immediately (August 2019)8/30/2019
DDD-190716-499-076.PDFInfo Sheet: Windows 10 for Enterprises Security Benefits of Timely Adoption (April 2018)4/1/2018
Joint CSA: NSA and CISA Red and Blue Teams Share Top Ten Cybersecurity MisconfigurationsJoint CSA: NSA and CISA Red and Blue Teams Share Top Ten Cybersecurity Misconfigurations10/5/2023
Network Device Integrity (NDI) MethodologyNetwork Device Integrity (NDI) Methodology2/23/2016
Network Device Integrity (NDI) on Cisco IOS DevicesNetwork Device Integrity (NDI) on Cisco IOS Devices2/23/2016
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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