Anthropic will brief the Financial Stability Board on cybersecurity flaws its Claude Mythos model has uncovered across the global banking system.
Bailey Pulls FSB Into Mythos Briefing
The artificial intelligence company has agreed to walk G20 finance ministries and central bankers through cyber vulnerabilities its unreleased Mythos model has surfaced, media reported on Monday. Andrew Bailey, the Bank of England governor who chairs the FSB, requested the session.
Bailey first flagged the model at a Columbia University event in April, warning that Mythos could identify exploitable weaknesses in third-party systems.
The FSB groups finance ministry officials, central bankers, and securities regulators from G20 economies, including the United States, the United Kingdom, Japan, Germany, and China.
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Project Glasswing Limits Access
Anthropic has said Mythos has already surfaced thousands of high-severity flaws in major operating systems and browsers. Internal testing reportedly produced working exploits on the first try in more than 83% of cases.
The model is being distributed under Project Glasswing, a controlled-access program covering about 40 organizations. Amazon, Microsoft, Google, Nvidia, Cisco, Apple, and JPMorgan sit on the early-access list, while bank supervisors outside it are pushing for direct or regulator-mediated entry.
A growing number of FSB members worry that Mythos and rival US frontier systems could open systemic holes in bank cyber defenses.
Mythos Regulator Push Widens
Independent benchmarks from XBOW released this month confirmed Mythos leads rivals on code audits, cutting bug misses by 42%, though pricing limits its commercial reach.
Bailey told the Columbia audience that Anthropic "may have found a way to crack the whole cyber risk world open."
The FSB is separately preparing a sound-practices report on AI in the financial system, set for consultation next month.
UK banks received their own Mythos briefing days after the Columbia remarks. The Federal Reserve and US Treasury then convened major American bank CEOs on the same risk, Australia's securities regulator joined the watch-list in early May, and Japanese megabanks were briefed last week.
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