OpenAI said Tuesday that it has made several changes to its safety practices following its determination that an upcoming system, Astra, may have reached a critical threshold for cybersecurity capabilities and the breach of Hugging Face's systems by another unreleased OpenAI model.Why it matters: The disclosure comes as OpenAI and other frontier labs face increased scrutiny in the wake of incidents in which their models escaped safeguards and sandboxes during testing. Driving the news: OpenAI sa...