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    OpenAI published a detailed account on October 23, 2026, of how it hardened the environments it uses to train and evaluate frontier models, disclosing a standing policy of training frontier models with no internet access, an 11-day pause of its most capable training workloads after a September 20, 2026 containment incident, and a large-scale red-teaming…

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    OpenAI will train frontier AI models without internet access moving forward, the company announced in a blog post, in an attempt to protect internet infrastructure and limit other safety risks. The decision was inspired by OpenAI’s own rogue AI incident: In July, the company shared that agents it was testing hacked Hugging Face, just the…

    Agent2Agent (A2A) is an open protocol that enables AI agents to discover one another, exchange messages, delegate tasks, report progress, and return results across system boundaries. It is designed for situations where one agent needs help from another without requiring either side to expose its internal reasoning, memory, or implementation.