Payward Joins Project Glasswing to Put Anthropic's Most Capable Security Model to Work
Payward has joined Anthropic's Project Glasswing and gained access to Claude Mythos 5, its most capable model for finding and fixing software vulnerabilities.
TL;DR
- We have joined Project Glasswing, Anthropic's initiative to secure the world's most critical software, and gained access to Claude Mythos 5, Anthropic's most capable model for cybersecurity defense.
- Our access follows the US government's decision to allow Mythos 5 to reach organizations that operate and defend critical infrastructure.
- We're putting Mythos 5 to work on securing our products, hunting for vulnerabilities before attackers can find them.
We've joined Anthropic's Project Glasswing and are actively incorporating Claude Mythos 5, Anthropic's most capable model for finding and fixing software vulnerabilities, into our defensive cybersecurity work.
Our access follows the US government's decision to allow Claude Mythos 5 to reach US organizations that operate and defend critical infrastructure, a track that has grown since Project Glasswing launched in April 2026 to include leaders in technology and finance.
Where we fit in Project Glasswing
Digital asset platforms run always-on financial infrastructure, order books, custody systems, and settlement rails that never close, and that draws the same caliber of attacker as the power grids and payment systems Project Glasswing was built to protect.
Arjun Sethi, Co-CEO of Payward: “Security has always been an unfair game. An attacker needs to find one flaw. A defender has to find all of them, first, every single day. Frontier AI is the first thing that flips that asymmetry. A model can read every line of code the way an attacker would, at machine scale, so we find the flaw before anyone can build the exploit.”
“Millions of people run their financial lives on our infrastructure, and what we find in the shared open source code beneath it goes back upstream, so the entire ecosystem hardens with us. Defense has to compound as fast as offense. Anything slower is losing.”
Getting early access to the same class of model that's helping harden the world's most critical software gives our security team a real head start on that same problem.
How we're putting Mythos 5 to work
In the coming weeks, we will be using Claude Mythos 5 to scan all Payward environments for vulnerabilities, with findings feeding directly into our existing security program. As an organization that heavily values open source contributions, we plan to share any 3rd-party findings with the relevant project maintainers in order to make the entire crypto ecosystem stronger.
Project Glasswing is still growing, and Anthropic has said it's working to bring Mythos-class capabilities to more organizations as it builds out the safeguards needed for wider release. We're glad to be part of that effort. For more on Project Glasswing, visit anthropic.com/glasswing.
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