Microsoft says bug causes Copilot to summarize confidential emails

Microsoft says a Microsoft 365 Copilot bug has been causing the AI assistant to summarize confidential emails since late ...
Windows Report

Microsoft 365 Copilot Bug Summarized Confidential Emails Despite DLP Policies

Microsoft confirms a Copilot bug that summarized confidential emails despite DLP protections. Fix is rolling out, impact remains unclear.

Microsoft Copilot ignored sensitivity labels twice in eight months — and no DLP stack caught either one

Microsoft's CW1226324 advisory confirms Copilot bypassed sensitivity labels and DLP policies for four weeks. Combined with EchoLeak (CVE-2025-32711), it reveals a structural blind spot in enterprise ...