The US Treasury secretary, Scott Bessent, summoned major American bank chiefs to a meeting in Washington this week amid concerns over the cyber risks posed by Anthropic’s latest AI model, according to reports.Jerome Powell, chair of the Rederal Reserve, was said to have been among those gathered at the Treasury headquarters for the meeting after the release of the Claude Mythos AI model that Anthropic says poses unprecedented cybersecurity risks.A recent leak of Claude’s code prompted the startu...