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: Commercial National Security Algorithm Suite 2.0 (CNSA 2.0) FAQ9/7/2022
 CSA: Iranian Islamic Revolutionary Guard Corps-Affiliated Cyber Actors Exploiting Vulnerabilities for Data Extortion and Disc Encryption for Ransom Operations9/14/2022
 CSA: Control System Defense: Know the Opponent9/22/2022
 CSA: Impacket, Custom Exfiltration Tools Used to Steal Sensitive Information from Defense Industrial Base Organization10/4/2022
 CSA: Top Common Vulnerabilities and Exposures (CVEs) Actively Exploited by People’s Republic of China State-Sponsored Cyber Actors (October 2022)10/6/2022
 Securing the Software Supply Chain: Recommended Practices Guide for Suppliers10/31/2022
 ESF: Securing the Software Supply Chain: Recommended Practices Guide for Suppliers Slicksheet10/31/2022
 CSI: Software Memory Safety11/10/2022
 ESF: Securing the Software Supply Chain for Customers Slick sheet11/17/2022
 ESF: Securing the Software Supply Chain for Customers11/17/2022
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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