AI and cloud briefing: EU AI Act transparency rules take effect, plus OpenAI's Astra cracks a 27-year-old maths problem
A short, factual briefing for 3 August 2026: the EU starts enforcing new AI transparency rules on chatbots and deepfakes, Microsoft fixes a critical Azure Cosmos DB flaw called CosmosEscape, OpenAI's internal Astra model solves ten open problems in mathematics with machine-checked proofs, and a Chinese-speaking hacker runs autonomous cyber attacks using DeepSeek.