
Microsoft's Lazarus backdoor makes model weights a supply chain risk
Microsoft researchers showed that editing fewer than 10 rarely used neurons can plant a hidden backdoor in an AI agent, so model weights now need the same provenance checks as code. Hugging Face co-founder Thomas Wolf said an open-weight model, not a closed one, helped the company stop rogue OpenAI agents that attacked it in July. Pressure on the industry is also growing in Washington and on Wall Street: Democrats are weighing a bill that would require federal permission to build advanced AI, and Nvidia's board is reportedly preparing to remove Jensen Huang. Here are the 5 stories that matter most, then 15 briefs.
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