Product Launchllmbackdoorsopen weightmicrosoft
Microsoft Releases Scanner Detecting LLM Backdoors
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On Feb. 4, 2026, Microsoft said it built a lightweight scanner that detects backdoors in open-weight large language models (LLMs). The AI Security team said the tool uses three observable signals to reliably flag backdoors while maintaining low false-positive rates. Microsoft said the scanner aims to improve trust in AI systems and help practitioners screen open-weight models before deployment.
