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: Actively Manage Systems and Configurations (August 2019)8/30/2019
 Info Sheet: Adopting Encrypted DNS in Enterprise Environments (January 2021)1/14/2021
 DDD-190716-743-080.PDFInfo Sheet: Best Practices for Keeping Your Home Network Secure (September 2018)9/18/2018
 DDD-190716-950-081.PDFInfo Sheet: Blocking Unnecessary Advertising Web Content (July 2018)7/5/2018
 DDD-190716-221-082.PDFInfo Sheet: Boot Security Modes Recommendations (June 2019)6/1/2019
 DDD-190716-058-083.PDFInfo Sheet: Cloud Security Basics (August 2018)8/29/2018
 Info Sheet: Continuously Hunt for Network Intrusions (August 2019)8/30/2019
 Info Sheet: Defend Privileges and Accounts (August 2019)8/30/2019
 DDD-190716-296-078.PDFInfo Sheet: Defending Your DNS Infrastructure (June 2019)6/1/2019
 DDD-200609-232-015.PDFInfo Sheet: Detect and Prevent Web Shell Malware (April 2020)4/22/2020
Page 8 of 13

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