# Anthropic — Expanding the Cyber Verification Program

- Company: Anthropic (anthropic.com)
- Announced: 2026-10-06
- Category: capability-change
- Coverage: 2 outlets
- Announcement: yes
- Group: covered
- Source: https://www.anthropic.com/news/cyber-verification-program
- Record: https://forck.live/items/16254-expanding-the-cyber-verification-program
- Subject: Claude
- Models affected: Claude Opus 5.5, Claude Sonnet 5.5, Claude Mythos 5.1, Claude Fable 5.1

Anthropic expanded its Cyber Verification Program (CVP) into three access tiers—Defense Access, Red Team Access, and Specialized Access—each with different verification requirements and security controls. The program provides qualifying security professionals access to advanced models including Claude Opus 5.5, Claude Sonnet 5.5, and Claude Mythos 5.1, with reduced blocking classifiers for cyber work. Existing Project Glasswing members will transition to the Specialized Access tier without needing reapproval for current models.

## Evidence

Verbatim from https://www.anthropic.com/news/cyber-verification-program:

> The updated access tiers make specific model capabilities available to security professionals based on the scope of their cyber work. Each has different verification requirements and security controls.

## Around this story

Outlets this record can name and link:

- Unite — Anthropic Expands Cyber Verification Program to Three Access Tiers: https://unite.ai/anthropic-expands-cyber-verification-program-to-three-access-tiers
- Madrobot — Anthropic will let vetted red teams use Claude for the hacking work it normally blocks: https://madrobot.blog/2026/10/06/anthropic-cyber-verification-program-red-team-access-tiers-claude

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Record: https://forck.live/items/16254-expanding-the-cyber-verification-program
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