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Microsoft Windows April 2026 protections for malicious .rdp files

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H score 28
1 unique sources, 1 articles

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Microsoft shipped April 2026 cumulative updates for Windows 10 and Windows 11 that add warnings and disable risky shared resources by default when users open .rdp files, reducing phishing-driven credential theft and file exposure.

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Timeline

  1. 15.04.2026 01:23 2 articles · 2mo ago

    Microsoft adds protections for .rdp files

    Mitigation Patch Update

    Microsoft released new Windows protections for Remote Desktop connection (.rdp) files in the April 2026 cumulative updates for Windows 10 KB5082200 and Windows 11 KB5083769 and KB5082052, warning users about phishing abuse and disabling risky shared resources by default. When a user opens an .rdp file for the first time after installing the update, Windows shows a one-time educational prompt; later opens display a security dialog that shows whether the file is signed by a verified publisher, the remote system's address, and local resource redirections such as drives, clipboard, or devices, with every option disabled by default. The protections apply only to connections initiated by opening .rdp files, not the Windows Remote Desktop client, and administrators can temporarily disable them by changing RedirectionWarningDialogVersion under HKLM\Software\Policies\Microsoft\Windows NT\Terminal Services\Client.

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