A/361, “Security and Content Protection”Approved: 17 July 2025

This Recommended Practice describes recommended operational modes and parameters for implementation of the security features (excluding DRM) described in ATSC A/360, “ATSC 3.0 Security and Service Protection.”

Download current version: A/361:2025-07, “Security and Content Protection”, 17 July 2025.

Previous Versions

There are multiple versions of this document. Please be sure to download the desired version. For amendments, the text includes a list of changes, the rationale for the changes, and compatibility considerations.

Download A/361:2019, “Security and Content Protection”, approved 10 December 2019.

Download A/361:2022-03, “Security and Content Protection”, 31 March 2022.

Download A/361:2023-03, “Security and Content Protection”, 28 March 2023.

Download A/361:2024-04, “Security and Content Protection”, 3 April 2024.

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ATSC, the Broadcast Standards Association, is an international, non-profit organization developing voluntary standards and recommended practices for digital terrestrial broadcasting. Serving as an essential force in the broadcasting industry, ATSC guides the seamless integration of broadcast and telecom standards to drive the industry forward. Currently, the ATSC 3.0 Standard is providing the best possible solution for expanding the potential of the broadcast spectrum beyond its traditional application to meet changing needs. From conventional television to innovative digital data services, ATSC has one clear goal: to empower the broadcasting ecosystem like never before.

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