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.

To read our complete series on protecting DoD microelectronics from adversary influence, view our DoD Microelectronics Guidance page.

ImageTitlePublication Date
 DDD-200716-666-047.PDFAdvisory: Patch Critical Vulnerability in Windows Servers using DNS Server Role (July 2020)7/16/2020
 DDD-200723-941-003.PDFAdvisory: Protect Operational Technologies and Control Systems against Cyber Attacks (July 2020)7/23/2020
 DDD-200730-216-040.PDFCybersecurity Advisory: Mitigate the GRUB2 BootHole Vulnerability7/30/2020
 DDD-200804-085-006.PDFInfo Sheet: Limiting Location Data Exposure8/4/2020
 CSA_DROVORUB_RUSSIAN_GRU_MALWARE_AUG_2020.PDFCybersecurity Advisory: Russian GRU 85th GTsSS Deploys Previously Undisclosed Drovorub Malware8/13/2020
 HARDENING_NETWORK_DEVICES.PDFInfo Sheet: Hardening Network Devices (August 2020)8/18/2020
 CTR-UEFI-SECURE-BOOT-CUSTOMIZATION-20200915.PDFUEFI Secure Boot Customization9/17/2020
 COMPROMISED_PERSONAL_NETWORK_INDICATORS_AND_MITIGATIONS_20200914_FINAL.PDFCompromised Personal Network Indicators and Mitigations9/17/2020
 PERFORMING_OUT_OF_BAND_NETWORK_MANAGEMENT20200911.PDFPerforming Out-of-Band Network Management9/17/2020
 DDD-200702-323-002.PDFInfo Sheet: (Full) Configuring IPsec Virtual Private Networks (October 2020 update)10/16/2020
 DDD-200702-489-003.PDFInfo Sheet: (Abridged) Configuring IPsec Virtual Private Networks (October 2020 update)10/16/2020
 CSI_MULTIFACTOR_AUTHENTICATION_SOLUTIONS_UOO17091520.PDFInfo Sheet: Multifactor Authentication Solutions (October 2020 update)10/16/2020
 CSA_CHINESE_EXPLOIT_VULNERABILITIES_UOO179811.PDFCybersecurity Advisory: Chinese State-Sponsored Actors Exploit Publicly Known Vulnerabilities (October 2020)10/20/2020
 Info Sheet: Mobile Device Best Practices (October 2020)Info Sheet: Mobile Device Best Practices (October 2020)10/23/2020
 CSI_ SELECTING_AND_USING_COLLABORATION_SERVICES_SECURELY_FULL_20200814.PDFInfo Sheet: (Full) Selecting and Safely Using Collaboration Services for Telework (November 2020 update)11/5/2020
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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