The Claude Mythos model by Anthropic has reportedly found vulnerabilities in many operating systems and browsers, which naturally raises serious concerns.
BBC Tech https://www.bbc.co.uk/news/articles/c2ev24yx4rmo reports concerns from finance ministers, central bankers and financiers who are understandably concerned that any weaknesses in global finance systems could be exploited.
For a more technical analysis, Steve Gibsons Security Now! https://www.grc.com/sn/sn-1074-notes.pdf show notes, starting on page 2, has detailed coverage.