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Microsoft Defender flags legitimate Google search links as malicious

📅 2 September 2026 at 10:29 UTC📰 Bleeping ComputerView original source ↗
Microsoft Defender flags legitimate Google search links as malicious

Microsoft is investigating an issue causing the Defender for Office 365 security software to mistakenly block access to legitimate Google search links. [...]

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Microsoft Defender for Office 365 mistakenly flagged legitimate Google search links as malicious, causing users to receive warnings when trying to open the blocked hyperlinks. The issue is attributed to an inaccurate security classification.

⚙️Technical Details
Affected Systems
Defender for Office 365
Attack Vectors
Google search links
💥Impact Assessment
Severity: Medium
Who Is at Risk
Users with Defender for Office 365 installed
🛡️Recommended Actions
1Check the Microsoft Defender for Office 365 settings to ensure Safe Links is enabled and configured correctly.
2Verify that Google search links are not being flagged as malicious by attempting to open them directly in a browser.
3Monitor the Microsoft Sentinel security information and event management (SIEM) solution for related alerts and incidents.
📦Affected Products
Microsoft Defender for Office 365

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