Anthropic launches $35M fund for open-source cyber defence
What's the deal? AnthropicDealroom has a profile for this one. Try Dealroom → has launched Project Glasswing, a collaborative cybersecurity initiative backed by a $35 million fund for open-source security projects, plus up to $100 million in model usage credits and $4 million in direct donations. It brings together AWSDealroom has a profile for this one. Try Dealroom →, Apple, GoogleDealroom has a profile for this one. Try Dealroom →, and Microsoft in a single consortium.
What's the endgame? The effort centres on Anthropic's unreleased Claude Mythos Preview model, which scans codebases for flaws. It has already flagged over 10,000 high and critical vulnerabilities, including longstanding ones buried in established software.
Where the money goes: The $100 million in credits lets researchers run their own scans with Claude Mythos Preview. Direct funding includes $2.5 million to Alpha-OmegaDealroom has a profile for this one. Try Dealroom → and the Open Source Security Foundation, $1.5 million to the Apache Software FoundationDealroom has a profile for this one. Try Dealroom →, and $12.5 million via the Linux FoundationDealroom has a profile for this one. Try Dealroom →'s grant programme. Anthropic also previously committed $1.5 million to the Python Software Foundation.
Why now? Open-source software is uniquely exposed. Most critical projects are maintained by small teams — sometimes one or two developers — yet run inside Fortune 500 companies and governments worldwide.
What could go wrong? The 2021 Log4j vulnerability showed the stakes: a single flaw in a widely used component triggered a global scramble affecting hundreds of thousands of organisations. The same AI tools that find bugs could help attackers exploit them.
The signal: Rather than sell a proprietary security product, Anthropic is taking an ecosystem approach — funding existing groups, giving away compute, and putting rivals in the same room. Roughly 150 additional organisations had joined by August 2026, most operating on budgets too thin to build such tools themselves.
Read more: Crypto Briefing
Image credit: RyanDonegan
