NSA chief says Mythos breached ‘almost all’ classified systems in hoursCivilisational inflection note: This is the moment the frontier-AI cyber-offence question stopped being theoretical for a state actor.The Economist reported that Senator Mark Warner said Gen. Joshua Rudd (NSA / Cyber Command) told him Anthropic’s Mythos, in a red-team exercise on 11 June, broke into nearly all NSA classified systems — in hours, not weeks.New today: The disclosure is circulating widely this weekend and recasts...