Cybersecurity Advisories & Technical 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
DDD-200702-489-003.PDFInfo Sheet: (Abridged) Configuring IPsec Virtual Private Networks (October 2020 update)10/16/2020
CSI_ SELECTING_AND_USING_COLLABORATION_SERVICES_SECURELY_SHORT_20200814.PDFInfo Sheet: (Abridged) Selecting and Safely Using Collaboration Services for Telework (November 2020 update)11/5/2020
DDD-200702-323-002.PDFInfo Sheet: (Full) Configuring IPsec Virtual Private Networks (October 2020 update)10/16/2020
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
DDD-190716-785-084.PDFInfo Sheet: 2018 Cybersecurity Highlights (October 2018)10/1/2018
Info Sheet: Actively Manage Systems and Configurations (August 2019)8/30/2019
CSI_ADOPTING_ENCRYPTED_DNS_U_OO_102904_21.PDFInfo 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
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Additional Documents

The following resources require use of a Federal/DoD Public Key Infrastructure (PKI), Personal Identity Verification (PIV) or Common Access Card (CAC) client certificate. Read more information about these access requirements.