UK Telecommunications (Security) Act 2021
Telecommunications Security Code of Practice v1.1 (July 2026): measure groups and their Tier 1 and Tier 2 dates – UK Telecommunications (Security) Act 2021

UK Telecommunications (Security) Act 2021 M5: 01 to M5.07 Supporting business processes: CAF-based processes, prioritised security changes, restorable read-only backups and incident management

What does M5 require?

Put in place business processes drawing on the listed parts of the NCSC Cyber Assessment Framework (Annex C); prioritise security changes and record postponements as business risk; keep restorable read-only backups; have exercised processes for incidents of varying severity; perform root-cause analysis of all security incidents escalated as appropriate, including to the board; share high-level lessons from significant incidents with other providers; and use lessons learned in new products and services. Due: Tier 1 by 31 March 2024; Tier 2 by 31 March 2025.

Maintained by Gerard BlokdykVerified against the published standard Control text last updated

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