New RDP Alert After April 2026 Security Update Warns of Unknown Connections

Microsoft has rolled out a significant behavioral change to the Windows Remote Desktop Connection application (MSTSC) as part of its April 2026 Patch Tuesday security update, introducing new warning dialogs designed to protect users from phishing attacks that exploit Remote Desktop Protocol (.rdp) files. Remote Desktop (.rdp) files have increasingly been weaponized by threat actors […]

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