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
 ELIMINATING_OBSOLETE_TLS_UOO197443-20.PDFInfo Sheet: Eliminating Obsolete TLS Protocol Configurations (January 2021)1/5/2021
 Info Sheet: Embracing a Zero Trust Security Model (February 2021)2/25/2021
 Info Sheet: Enforce Signed Software Execution Policies (August 2019)8/30/2019
 Info Sheet: Exercise a System Recovery Plan (August 2019)8/30/2019
 HARDENING_NETWORK_DEVICES.PDFInfo Sheet: Hardening Network Devices (August 2020)8/18/2020
 DDD-190716-760-085.PDFInfo Sheet: Identity Theft Threat and Mitigations (September 2018)9/18/2018
 Info Sheet: Integrate Threat Reputation Services (August 2019)8/30/2019
 Info Sheet: Leverage Modern Hardware Security Features (August 2019)8/30/2019
 DDD-200804-085-006.PDFInfo Sheet: Limiting Location Data Exposure8/4/2020
 DDD-190716-967-086.PDFInfo Sheet: Limiting ptrace on Production Linux Systems (May 2019)5/1/2019
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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