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
 CSI: Deploying Secure Unified Communications/Voice and Video over IP Systems (Abridged) (June 2021)6/17/2021
 CSI: Keeping PowerShell: Security Measures to Use and Embrace6/22/2022
 CSI: Keeping Safe on Social Media (August 2021 Update)8/6/2021
 CSI: Selecting and Hardening Remote Access VPN Solutions9/28/2021
 CTR: Configuring Adobe Acrobat Reader1/20/2022
 CTR: Deploying Secure Unified Communications/Voice and Video over IP Systems (June 2021)6/17/2021
 CTR: DoD Microelectronics: Levels of Assurance Definitions and Applications7/14/2022
 CTR: Network Infrastructure Security Guide (June 2022 Update)6/15/2022
 AUTHENTICATION_MECHANISMS_CSA_EXEC_U_OO_198854_20.PDFCybersecurity Advisory: (Abridged) Detecting Abuse of Authentication Mechanisms (December 2020)12/17/2020
 AUTHENTICATION_MECHANISMS_CSA_U_OO_198854_20.PDFCybersecurity Advisory: (Full) Detecting Abuse of Authentication Mechanisms (December 2020)12/17/2020
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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