Welcome to this week’s edition of the GBHackers cybersecurity newsletter — your weekly cybersecurity bulletin covering the 50 most important stories from August 31 – September 5, 2026. AI ran through the whole week: OpenAI’s GPT-6 Astra built working exploits, Anthropic shipped Claude Fable 5.1 and Mythos 5.1, Claude gained the ability to control computers, […]

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