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SearchLeak: How We Turned M365 Copilot Into a One-Click Data Exfiltration Weapon

calendar_today June 15, 2026 person Dolev Taler domain varonis

Varonis research uncovers a three-stage vulnerability chain combining parameter-to-prompt injection, HTML race conditions, and SSRF to enable silent data theft from Microsoft 365 Copilot Enterprise Search.

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