Guidance

Cyber security for defence suppliers (Def Stan 05-138)

This defence standard specifies the measures that defence suppliers are required to achieve at each of the 5 levels of cyber risk that a contract can be assessed as carrying.

Documents

Defence Standard 05-138, Issue 3: cyber security for defence suppliers

Details

This defence Standard (DEFSTAN 05-138, Issue 3) is applicable to all Ministry of Defence (MOD) procurements, MOD suppliers and their subcontract suppliers, which have a relationship to one or more MOD contracts.

Updates to this page

Published 17 October 2017
Last updated 1 July 2021 + show all updates
  1. Added Issue 3 of DEFSTAN 05-138.

  2. First published.

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