New Outlook for Windows

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First seenOct 6, 2026
Last mentioned19d ago

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Microsoft extends the Outlook naughty step with two more file types

Microsoft will block .msix and .msixbundle attachments in New Outlook for Windows and Outlook on the web.

The Register · Securityupdated Oct 7, 15:44 UTC · 18d agofirst Oct 6, 15:06 UTC · 19d agoAdvisory 2 sources1 · 1 read

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Microsoftvendor · 1
Exchange Onlineproduct · 1
Outlookproduct · 1
Outlook on the webproduct · 1
Microsoftorganization · 1

Entities are extracted by the model from each article. First seen Oct 6, 2026, last mentioned 19d ago. Watching keeps it in this browser only (no account); the watchlist page and dashboard alerts use it.