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Home/News/April 2026

Project Glasswing gives defenders early access to a frontier model that finds and exploits zero-days at scale

Anthropic and partners across cloud, security and critical software launched a programme in which a preview model with reduced safeguards is used by vetted organisations to discover and fix vulnerabilities before adversaries can.

ResearchUnited States7 Apr 2026

The launch disclosed that the model had discovered exploitable vulnerabilities across widely used software at a rate that changed the defensive calculus, and it set the template for gated access to cyber-capable variants that the June executive order and later releases followed. Critics noted that the same capability in less careful hands is now a matter of time.

What to do: assume adversaries will have comparable capability within months, shorten patch cycles for internet-facing systems, and seek defensive early access through vendors and sector programmes.