M365 Copilot SearchLeak: Your prompt injection attack surface just… | HappeningNow.news
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M365 Copilot SearchLeak: Your prompt injection attack surface just got bigger

A recent proof-of-concept attack against Microsoft’s M365 Copilot Enterprise highlights what could be a much broader prompt injection threat based on a common way many AI-enhanced web services operate.

Source Summary Published June 19, 2026 Brief Under 1 min brief
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Summary

A recent proof-of-concept attack against Microsoft’s M365 Copilot Enterprise highlights what could be a much broader prompt injection threat based on a common way many AI-enhanced web services operate. Dubbed SearchLeak, the attack hinged on a typical malicious objective: to leak sensitive corporate data by tricking employees to click on specially crafted links.

Read original at Csoonline

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