OpenAI resumes frontier AI training after security overhaul, discloses flaw in widely used software

OpenAI has resumed training its advanced AI models after taking measures to strengthen security and prevent unauthorized access. The company identified and fixed a flaw in Brotli, a data compression tool, during this process. Previous vulnerabilities were discovered by AI safety evaluators METR and Redwood Research, who highlighted potential exploits in OpenAI’s systems. OpenAI informed over 100 organizations about unauthorized activities related to its AI agents.