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NCSC scheme will help critical organisations test their cyber defences

New NCSC Cyber Adversary Simulation scheme will help critical organisations strengthen their resilience through rigorous, real-world testing by trusted providers.

DKCISSP News DeskNCSC-UK11 Nov 2026, 5:30 am2 min read
DKCISSP REPORT

New NCSC Cyber Adversary Simulation scheme will help critical organisations strengthen their resilience through rigorous, real-world testing by trusted providers.

The NCSC has launched a new Cyber Adversary Simulation (CyAS) scheme.

The scheme is designed to help strengthen national cyber resilience, supporting the UK's most critical organisations, as well as overseeing bodies.

Like all NCSC Industry Assurance schemes, CyAS draws on the NCSC’s expertise as the UK’s National Technical Authority for cyber security.

A key feature of the CyAS methodology is that providers conduct reconnaissance to understand the customer’s technology, exposure and threat landscape.

This supports consistency, shared learning and a stronger understanding of cyber risk; you can find a full list of assured service providers on the schemes ‘Find a Provider’ page.

How to ensure the ‘organisational memory’ of past vulnerabilities is not lost; research from the NCSC designed to eradicate vulnerability classes and make the top-level mitigations easier to implement.

Organisations must act now to prepare for a wave of patches that will address decades of technical debt.

What happened

New NCSC Cyber Adversary Simulation scheme will help critical organisations strengthen their resilience through rigorous, real-world testing by trusted providers.

The NCSC has launched a new Cyber Adversary Simulation (CyAS) scheme.

The scheme is designed to help strengthen national cyber resilience, supporting the UK's most critical organisations, as well as overseeing bodies.

Who is affected

Like all NCSC Industry Assurance schemes, CyAS draws on the NCSC’s expertise as the UK’s National Technical Authority for cyber security.

A key feature of the CyAS methodology is that providers conduct reconnaissance to understand the customer’s technology, exposure and threat landscape.

Why it matters

This supports consistency, shared learning and a stronger understanding of cyber risk; you can find a full list of assured service providers on the schemes ‘Find a Provider’ page.

Technical details

How to ensure the ‘organisational memory’ of past vulnerabilities is not lost; research from the NCSC designed to eradicate vulnerability classes and make the top-level mitigations easier to implement.

Response

Organisations must act now to prepare for a wave of patches that will address decades of technical debt.

What to watch next

Watch for revised vendor guidance, fixed versions and mitigation updates.

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