Anthropic limits access to AI model, fearing future of cyberattacks
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AI models have reached a level of coding capability where they can surpass all but the most skilled humans at finding and exploiting software vulnerabilities, Anthropic said.
Anthropic has announced it is rolling out its AI model, Claude Mythos Preview, to only a select group of companies after the new model found thousands of critical vulnerabilities across operating systems, web browsers and other software.
The new general-purpose model, Anthropic said, also found high-security vulnerabilities in every major operating system and web browser.
AI has already been used by hackers to conduct cyberattacks. There has been a 72% year-over-year increase in AI-powered cyberattacks, with 87% of global organizations experiencing AI-enabled cyberattacks in 2025, according to AllAboutAI.
Anthropic expressed concern over what would happen if similar AI capabilities were used by bad actors.
To combat this, Anthropic announced Project Glasswing on Tuesday, a new initiative that brings together more than 40 companies, including Amazon Web Services, Apple, Cisco, Google, JPMorgan, the Linux Foundation, Microsoft and Nvidia.
Project Glasswing will use Claude Mythos Preview's capabilities to defensively find bugs, share the data with its partners and get ahead of threats by patching critical vulnerabilities before bad actors can exploit them.
A zero-day vulnerability is a software bug that can be exploited before anyone with the ability to fix it even knows it exists. Finding and patching them has historically required rare, expensive human expertise, but AI could change the scale and speed of detection.
Anthropic said the vulnerabilities it finds are “often subtle or difficult to detect.”
Many of them are 10 or 20 years old, with the oldest found so far being a now-patched 27-year-old bug in OpenBSD — an operating system known primarily for its security, it added.
It also found a 16-year-old bug in the FFmpeg media processing library, a 17-year-old remote code execution vulnerability in the open-source FreeBSD operating system and numerous vulnerabilities in the Linux kernel.
Related: Cybersecurity stocks fall after Anthropic unveils Claude Code Security
Mythos Preview also identified several weaknesses in the world’s most popular cryptography libraries, algorithms and protocols, including TLS, AES-GCM and SSH.
It added that web applications “contain a myriad of vulnerabilities,” ranging from cross-site scripting and SQL injection to domain-specific vulnerabilities such as cross-site request forgery, which is often used in phishing attacks.
Anthropic claimed that 99% of the vulnerabilities it found have not yet been patched, “so it would be irresponsible for us to disclose details about them,.
Anthropic said that this is likely just the beginning of a trend, and the “work of defending the world’s cyber infrastructure might take years,” but AI will help harden software and systems.
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Source: CoinTelegraph
