UK Cyber Schemes
DEFSTAN 05-138
The Defence Standard setting the cyber security controls a supplier must meet, graded by the cyber risk level assigned to the contract.
Why it matters: it is the control set behind DEFCON 658, so the risk level assigned to your contract decides how much work is involved.
Related Goldline services: DCC readiness for defence suppliers and DCC Level 0 readiness for defence suppliers.
Related terms
Next step: DCC readiness for defence suppliers →
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