Microsoft Tests Mythos to Identify and Mitigate Vulnerabilities

Microsoft is working with Anthropic and other partners through Project Glasswing to test Claude Mythos Preview, the company said in a Wednesday (April 22) blog post.

Through this initiative, Microsoft aims to identify vulnerabilities earlier, mitigate them and coordinate a defensive response, according to the post.

“We evaluated Mythos using CTI-REALM, our open-source benchmark for real-world detection engineering tasks, and the results showed substantial improvements relative to prior models,” Ales Holecek, chief architect and corporate vice president, Microsoft Security, wrote in the post.

Microsoft is also evaluating other models, as it continuously evaluates models from multiple providers as part of its overall security approach, per the post.

To keep up with threats driven by artificial intelligence, Microsoft plans to incorporate Claude Mythos Preview and other advanced AI models directly into its Security Development Lifecycle (SDL) to discover issues, provide customers with guidance to reduce their exposure to AI-driven threats, and build new solutions to help customers leverage AI to improve their security, according to the post.

“Security is a team sport,” Holecek wrote in the post. “The organizations that act on this shift — by staying current on patches, reducing exposure and leveraging AI-powered security solutions — will be significantly harder to compromise than those that do not. The time to act is now and we look forward to partnering with the industry to build a safer world for all.”

It was reported April 7 that Anthropic unveiled a Project Glasswing to allow select partners to gain early accessto Claude Mythos Preview, a model that is being positioned specifically for defensive cybersecurity work.

The initiative is meant to allow partners to identify vulnerabilities and strengthen systems before threats can be exploited. Together with Microsoft, other participants in Project Glasswing include Amazon, Apple, and cybersecurity and infrastructure players like Crowdstrike, Palo Alto Networks, Google and Nvidia.

In its announcement of the initiative, Anthropic said: “We are hopeful that Project Glasswing can seed a larger effort across industry and the private sector, with all parties helping to address the biggest questions around the impact of powerful models on security.”

Anthropic said Wednesday that it is looking into claims of unauthorized access to Mythos.

“We’re investigating a report claiming unauthorized access to Claude Mythos Preview through one of our third-party vendor environments,” the company said in a statement to PYMNTS.