check before: 2026-04-01
Product:
Windows, Windows Server
Platform:
Developer, Online, Windows Desktop, World tenant
Status:
Change type:
Admin impact
Links:
Details:
Starting with the April 2026 Windows security update, Remote Desktop adds new safeguards to help reduce phishing attacks that misuse Remote Desktop (.rdp) files. These attacks attempt to trick devices into connecting to attacker-controlled systems and sharing local resources without clear visibility. To address this, a new security dialog appears before any connection is made, showing the remote computer address, publisher information (when available), and any requested access to local resources. All requested settings are disabled by default and must be explicitly enabled. A one-time security warning also appears the first time an RDP file is opened.
When will this happen:
This change takes effect with the April 2026 Windows security update.
Change Category:
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Scope:
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Release Phase:
Created:
2026-04-15
updated:
2026-04-17
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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summary for non-techies**
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Direct effects for Operations**
Increased User Frustration
Users may experience delays and confusion due to the new security dialog that appears before connections, potentially leading to frustration and decreased productivity.
- roles: End Users, IT Support Staff
- references: https://learn.microsoft.com/windows/win32/termserv/remote-desktop-activex-control
Workflow Disruption
Automated workflows that rely on RDP files may fail or require manual intervention, disrupting established processes and leading to operational inefficiencies.
- roles: IT Administrators, Developers
- references: https://learn.microsoft.com/windows/win32/termserv/imsrdpextendedsettings-property
Increased Support Queries
IT support teams may face an influx of queries from users regarding the new security dialogs and warnings, straining support resources.
- roles: IT Support Staff, Helpdesk Technicians
- references: https://learn.microsoft.com/windows/win32/termserv/remote-desktop-activex-control
Compatibility Issues
Custom Remote Desktop clients or applications may not function as intended without updates, leading to potential service disruptions.
- roles: Developers, IT Administrators
- references: https://learn.microsoft.com/windows/win32/termserv/imsrdpextendedsettings-property
Security Awareness
Users may not understand the importance of the new security features, leading to potential security risks if they ignore the warnings.
- roles: End Users, IT Security Officers
- references: https://learn.microsoft.com/windows/win32/termserv/remote-desktop-activex-control
Configutation Options**
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Opportunities**
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Potentional Risks**
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IT Security**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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Last updated 3 weeks ago ago
