Microsoft court filings: an expert hired by publishers found that only ~60K of 8.2M Copilot chat logs contained at least 16 words in common with news content
THE SO WHAT
If fewer than 1% of 8.2M Copilot chats hit a 16-word overlap threshold, the near-term legal risk looks more about precedent than volume. For operators, the practical move is tightening logging, retention, and red-teaming for verbatim regurgitation now—before your own usage data becomes discovery material.
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