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Anthropic has expanded Project Glasswing to around 150 organisations across more than 15 countries, providing broader access to its Claude Mythos Preview cybersecurity model. New participants include organisations from critical sectors such as healthcare, communications, energy and infrastructure.
The move comes just a day after Anthropic confirmed that it had confidentially filed for an initial public offering (IPO). It highlights the company's growing influence in both artificial intelligence and cybersecurity.
Anthropic has announced a major expansion of Project Glasswing, its cybersecurity initiative designed to help organizations identify and fix critical software vulnerabilities using AI. “We’re now expanding Project Glasswing. Following several weeks of close collaboration with our Project Glasswing partners, the security industry, open-source software maintainers, and the US government, we’re extending the partnership to approximately 150 new organizations. Each one will need to meet our security requirements before they gain access,” the company stated.
Project Glasswing was launched earlier this year as a joint industry initiative to strengthen cybersecurity through artificial intelligence. In April, Anthropic provided access to Claude Mythos Preview to an initial group of around 50 partners, including organizations connected to the US government.
According to the company, many organizations maintain software and digital infrastructure that millions of people rely on every day. Anthropic stated that a successful cyber attack against many of these systems could have serious consequences for national security, public services and critical infrastructure. The company estimated that a major attack on some participating organisations could potentially affect more than 100 million people.
At the center of Project Glasswing is Anthropic's advanced AI model, Claude Mythos, which the company says can identify thousands of serious software vulnerabilities in a matter of weeks.
According to Anthropic, the AI model has already helped discover thousands of high-severity vulnerabilities, including flaws affecting critical digital infrastructure. The company says Project Glasswing is not just about finding bugs. It is also focused on building safety frameworks and safeguards before highly capable cybersecurity AI tools become widely available.
Anthropic said the expanded group will include organizations operating in sectors that were underrepresented during the first phase of the program. These sectors include:
Energy and power systems
Water infrastructure
Healthcare services
Communications networks
Hardware and semiconductor companies
Also Read: Anthropic Launches Smarter Claude Opus 4.8 and Reveals Mythos AI Roadmap
The expanded program includes organizations from several countries that work closely with the United States. The wider international participation reflects growing concern among governments and businesses about increasingly sophisticated cyber threats. Several major organisations are also reported to be participating, including identity management company Okta, technology firms Samsung, SK Hynix, and SK Telecom, along with NATO and the European Union Agency for Cybersecurity (ENISA).
OpenAI has recently introduced GPT-5.5-Cyber, a specialized model focused on cybersecurity applications, and has begun testing it with selected partners. Industry analysts believe cybersecurity could become one of the most important areas for advanced AI deployment over the next few years.
As cyber threats become more advanced and frequent, organizations are increasingly turning to AI-powered security tools for faster detection and response. The growing adoption of these technologies highlights a broader shift toward proactive cybersecurity strategies to protect critical systems, data, and infrastructure.
