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
 DDD-191216-685-015.PDFInfo Sheet: Managing Risk From Transport Layer Security Inspection (16 December 2019)12/17/2019
 DDD-200122-993-002.PDFInfo Sheet: Mitigating Cloud Vulnerabilities (January2020)1/22/2020
 Info Sheet: Mobile Device Best Practices (October 2020)10/23/2020
 DDD-190716-916-070.PDFInfo Sheet: Mobile Device Best Practices When Traveling OCONUS (May 2018)5/1/2018
 CSI_MULTIFACTOR_AUTHENTICATION_SOLUTIONS_UOO17091520.PDFInfo Sheet: Multifactor Authentication Solutions (October 2020 update)10/16/2020
 DDD-190716-796-079.PDFInfo Sheet: NCTOC Top 5 Security Operations Center (SOC) Principles (March 2018)3/29/2018
 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)8/30/2019
 Info Sheet: Selecting a Protective DNS Service (May 2021 Update)5/31/2021
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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