
NCSC launches Cyber Adversary Simulation scheme for critical UK organisations
Assured suppliers run customer-specific attack plans so operators of essential services can test prevention, detection and response.
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Assured suppliers run customer-specific attack plans so operators of essential services can test prevention, detection and response.

NCSC published adversary simulation guidance and the first Cyber Adversary Simulation (CyAS) scheme documents ahead of the scheme's November 2026 launch.

UK NCSC publishes guidance on adversary simulation, comparing full spectrum and assumed breach approaches across prerequisites, testing, and reporting phases.
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