Critical Microsoft 365 Copilot Vulnerability Allows Attackers to Steal Data in One Click

A critical vulnerability chain in Microsoft 365 Copilot Enterprise that let attackers steal sensitive corporate data, MFA codes, email contents, calendar details, and confidential files with nothing more than a single click on a link pointing to a legitimate Microsoft domain. Dubbed SearchLeak, uncovered by Varonis Threat Labs and tracked as CVE-2026-42824, the flaw earned […]

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