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AnnouncementMicrosoft Research blog30 October 2026

Microsoft now tests Copilot on made-up companies instead of using real customer data

Why it matters

Microsoft tests Copilot on simulated companies rather than customer data, so your own sensitive files are not part of its evaluation.

Ask your team

Have we checked how Copilot performs on our own workflows, rather than relying on Microsoft's simulated tests?

What happened

Microsoft built a platform that generates full-scale fake company environments to test Copilot, using public information like job ads, government occupation records and SEC filings. The simulated workplaces copy real business workflows so Microsoft can spot problems without touching customer data.

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Impact on Software & SaaS · Enterprise IT

The context Last Microsoft story: Microsoft borrows $25 billion by selling bonds to investors (30 Oct) · 16 Microsoft stories in the last 30 days

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