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Copilot ‘steal data’ reprompt vulnerability: Microsoft says it’s fixed – January 2026

Author/Source: No technical terms See the full link here

Takeaway

The article discusses a security problem found in Microsoft’s Copilot tool where it could share information from one conversation in another. Microsoft says they have fixed this issue.


Technical Subject Understandability

Beginner


Analogy/Comparison

It’s like a teacher accidentally reading one student’s private note aloud to the whole class.


Why It Matters

If Copilot had this vulnerability, someone could accidentally see private information that wasn’t meant for them. For example, a business’s confidential plans could be exposed to a competitor.


Related Terms

No related terms

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