CISA publishes Trusted Internet Connection 3.0 Use Case Handbook

Original title: Use Case Handbook

CISA has published the Trusted Internet Connection 3.0 Use Case Handbook to provide organizations with practical implementation guidance. The handbook offers detailed use cases and examples for deploying TIC 3.0 architecture across various federal and non-federal networks. Organizations implementing or upgrading to TIC 3.0 should consult this resource to understand best practices for network security architecture and traffic inspection requirements.

What changed

• CISA released the TIC 3.0 Use Case Handbook in September 2026, providing comprehensive implementation guidance for the Trusted Internet Connection architecture.
• The handbook includes practical use cases and examples demonstrating how to deploy TIC 3.0 principles across different network environments and organizational scenarios.

Who is affected

U.S. federal government agencies and organizations implementing Trusted Internet Connection architecture; applies to federal networks and agencies subject to CISA guidance.

Summary generated by a language model; the official text prevails. Not legal advice.