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Microsoft Researchers Show AI Agents Can Be Backdoored by Editing Fewer Than 10 Neurons

This story is from 2026-11-11. It is preserved in the archive; the latest stories are on the live feed.

Microsoft researchers demonstrated a technique, dubbed Lazarus, that plants a hidden backdoor in an AI agent by reprogramming fewer than 10 rarely used neurons in a large language model, without retraining. The backdoor activates when a chosen trigger appears.

Read the full story at The Hacker News (security) ↗

Timeline · 3 reports

  1. 2026-11-12 03:35 · r/artificial
    Microsoft researchers backdoored an AI agent by editing fewer than 10 neurons - no retraining needed
  2. 2026-11-11 08:30 · The Next Web
    Microsoft finds AI agents can be backdoored by editing under 10 neurons
  3. 2026-11-11 07:21 · The Hacker News (security)
    Microsoft Researchers Show AI Agents Can Be Backdoored by Editing Fewer Than 10 Neurons

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