Anthropic to Brief Global Financial Watchdog on AI Cyber Risks

Anthropic plans to brief the Financial Stability Board on the cyber security implications of its Claude Mythos AI model, a system that has alarmed experts with its potential to threaten defenses.

The US-based artificial intelligence company will discuss Mythos with the Financial Stability Board, an international body chaired by Bank of England Governor Andrew Bailey.

Anthropic has declined to release Mythos publicly, stating that the model possesses advanced capabilities in identifying previously unknown flaws in IT systems — a feature that could be exploited by malicious hackers.

Instead, Anthropic has granted access to Mythos to a select group of technology firms and banks, including Apple and JPMorgan Chase, to help them detect vulnerabilities the model may uncover. The planned briefing with the FSB, first reported by the Financial Times, was confirmed by a source familiar with the discussions.

The UK’s AI Security Institute (AISI), which evaluates advanced AI models, issued an updated assessment of Mythos last week after reviewing the version deployed to banks and technology companies. AISI said the latest iteration represented a “notable capability jump” compared to the preview version it had tested the previous month.

According to AISI, the latest version of Mythos successfully completed a previously unsolved cybersecurity test known as “cooling tower” in three out of 10 attempts — a first for any model evaluated by the institute.

“Frontier AI’s autonomous cyber and software capability is advancing quickly: the length of cyber tasks that frontier models can complete autonomously has doubled on the order of months, not years,” AISI said.

AISI added that it is developing new, more challenging hacking tests to monitor the progress of AI models.

The FSB monitors and issues recommendations for the global financial system. Its membership includes officials from major economies such as the United States, the United Kingdom, Australia, and China, and its steering committee comprises senior central bank and finance ministry officials.

This month, the International Monetary Fund warned that financial stability risks are increasing due to “fast-moving” developments in artificial intelligence and called for a coordinated international response.

“Cyber risk does not respect borders. As AI capabilities spread across countries, inconsistent oversight could weaken a globally interconnected system,” the IMF said in a blog post.

Goldman Sachs Chief Executive David Solomon said last month he was “hyper-aware” of Mythos’s capabilities. JPMorgan Chase CEO Jamie Dimon added that AI has made cyber defense “harder,” though he noted it could ultimately help companies protect themselves against hackers.

Other experts have sought to downplay fears about Mythos, arguing it represents an evolution in cyber threats rather than a revolution. Cybersecurity professionals caution that most breaches still stem from well-established risks, such as weak authentication and unpatched known vulnerabilities.

The FSB and Anthropic have been contacted for comment.