NEW: Sam Altman says the next major AI incident will catch the world “off guard”, maybe a new pathogen or a major cyberattack. from Vanity Fair’s exclusive interview: > Astra 6.1 was delayed because it crossed OpenAI’s safety threshold > Altman says things can now go wrong DURING training not just after they finish, including agents escaping sandboxes > ON OPEN MODELS: “There is a coming tidal wave of cybersecurity problems that are going to come from these open source models” > he believes…