SK Telecom joins Anthropic's 'Project Glasswing'; Samsung, SK Hynix follow

SK Telecom has confirmed its participation in "Project Glasswing," the security cooperation initiative led by Anthropic, and the Ministry of Science and ICT will also join through the Korea Internet & Security Agency (KISA).

Samsung Electronics and SK Hynix have also signed on to Glasswing. The move signals progress on both national-level AI cybersecurity and the protection of the semiconductor industry, which has emerged as a critical pillar of the country's economy.

SK Telecom announced Wednesday that it had joined Anthropic's Project Glasswing and secured early access to "Claude Mythos."

"Through this project, we plan to strengthen the security of core infrastructure and services by proactively defending against risk factors," the company said. "As a company operating the telecommunications and AI infrastructure that is part of the daily lives of tens of millions of people, we will contribute to reinforcing South Korea's digital security on the basis of this collaboration."

Alongside this, the Ministry of Science and ICT confirmed its participation in Glasswing through KISA. The ministry said it "will continue to work to improve the level of cybersecurity."

Samsung Electronics and SK Hynix are in the final stages of the process, including verifying that they meet the security requirements Anthropic has set.

After it became known in April that Mythos, the AI model developed by Anthropic, could identify security vulnerabilities and carry out system attacks, the Ministry of Science and ICT and domestic companies began exploring participation in Glasswing in quick succession.

Amid that backdrop, Anthropic on Monday expanded access to Mythos to roughly 150 institutions across 15 countries, opening the door for South Korean companies and agencies to join Glasswing.

The development comes as a relief to the Ministry of Science and ICT. In the wake of the "Mythos shock," the ministry had called for building up its own capabilities, but Glasswing membership came to be seen as essential given that Mythos outperformed domestic AI models.

The urgency grew as AI-driven cyber threats became more concrete, pressing authorities to take steps to protect infrastructure including power, water, healthcare, telecommunications and hardware. Lee Sang-geun, director of the AI Security Research Institute at Korea University, told a recent National Assembly Research Service forum that joining Glasswing was necessary to overcome the "information asymmetry" between attackers and defenders.

SK Telecom, a strategic investor in Anthropic, is now positioned as the leader in AI security among South Korea's three major mobile carriers, having secured access to Mythos — widely regarded as the most capable AI model currently available.

Samsung Electronics and SK Hynix had also invested in Anthropic's Series H round. A semiconductor industry official said the companies had "reviewed accounts from actual users who found it strong from a security standpoint and have been examining the possibility of applying it."

Meanwhile, Anthropic said it plans to expand Glasswing further to include "essential infrastructure providers, critical open-source software maintainers and security testers," adding that "if Glasswing succeeds, it could provide a permanent advantage against AI-driven cyber threats."