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.

Image	Title	Publication Date
	Info Sheet: UEFI Lockdown Quick Guidance (March 2018)	3/1/2018
	Info Sheet: UEFI Advantages Over Legacy Mode (March 2018)	3/1/2018
	Info Sheet: Transition to Multi-Factor Authentication (August 2019)	8/30/2019
	Info Sheet: Top 10 Mitigation Strategies (March 2018)	7/16/2019
	Info Sheet: Steps to Secure Web Browsing (May 2018)	5/1/2018
	Info Sheet: Selecting a Protective DNS Service (May 2021 Update)	5/31/2021
	Info Sheet: Segment Networks and Deploy Application-Aware Defenses (September 2019)	8/30/2019
	Info Sheet: Operating on a Compromised Network (July 2014)	7/1/2014
	Info Sheet: NCTOC Top 5 Security Operations Center (SOC) Principles (March 2018)	3/29/2018
	Info Sheet: NCTOC Top 5 Security Operations Center (SOC) Principles (March 2018)	3/29/2018

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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