Claude expands verified cyber access into three tiers
Defense, Red Team and Specialized Access define permitted work and controls. CVP now covers Mythos 5.1, Opus 5.5 and Sonnet 5.5; this is not a new model launch.
By Pınar · Updated 7 October 2026

What this changes for UK buyers
Approval does not establish UK entitlement, free usage, client-facing productization permission or independent safety. Identity readiness and retention determine deployment fit.
What buyers should do
Confirm the target scope, account route and retention; prepare phishing-resistant MFA and short-lived credentials, then run a bounded authorised pilot.
Primary announcement
Anthropic expanded Cyber Verification Program — 6 October 2026 ↗This is a dated source-linked buyer briefing. A vendor announcement does not prove UK account eligibility, an independent performance result or regulatory compliance. Open the primary source and confirm the exact plan before changing a production workflow.
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