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
 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)8/30/2019
 DDD-190716-499-076.PDFInfo Sheet: Windows 10 for Enterprises Security Benefits of Timely Adoption (April 2018)4/1/2018
 DDD-190716-796-087.PDFORN: Multiple Critical Vulnerabilities Identified in CISCO Smart Install (April 2018)4/2/2018
 DDD-190716-744-088.PDFORN: Network Security Devices Utilizing Vulnerable Weak Signature Algorithms in TLS (June 2017)6/1/2017
 PERFORMING_OUT_OF_BAND_NETWORK_MANAGEMENT20200911.PDFPerforming Out-of-Band Network Management9/17/2020
 Potential Threat Vectors To 5G Infrastructure5/10/2021
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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