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Microsoft Tightens OneNote Security by Auto-Blocking 120 Risky File Extensions

04
Apr
2023
Microsoft Tightens OneNote Security by Auto-Blocking 120 Risky File Extensions

image credit: pixabay

Microsoft has announced plans to automatically block embedded files with “dangerous extensions” in OneNote following reports that the note-taking service is being increasingly abused for malware delivery.

Up until now, users were shown a dialog warning them that opening such attachments could harm their computer and data, but it was possible to dismiss the prompt and open the files.

That’s going to change going forward. Microsoft said it intends to prevent users from directly opening an embedded file with a dangerous extension and display the message: “Your administrator has blocked your ability to open this file type in OneNote.”

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