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- SMB security enhancements | Microsoft Learn
Windows Server 2022 and Windows 11 introduce AES-128-GMAC for SMB 3 1 1 signing Windows automatically negotiates this better-performing cipher method when connecting to another computer that supports it
- SMB security hardening in Windows Server 2025 Windows 11
Windows has focused on security options with each major release, and Windows 11 24H2 and Windows Server 2025 are no exception: they include a dozen new SMB features that make your data, your users, and your organization safer – and most are on by default
- Enable or Disable Require SMB Client Encryption in Windows 11
Starting with Windows 11 build 25982 (Canary), SMB now supports requiring encryption of all outbound SMB client connections With this new option, administrators can mandate that all destination servers support SMB 3 x and encryption, and if missing those capabilities, the client won’t connect
- How SMB Client Encryption Makes Windows 11 More Secure
With the release of the Windows 11 Canary build 25982 just last October, Microsoft announced mandatory SMB client encryption for all outbound connections This means that administrators can mandate that all destination servers support SMB 3 x and encryption
- Microsoft is building support for DNR and SMB client encryption mandate . . .
Windows 11 Canary preview builds have introduced SMB client encryption mandates and support for Network-designated Resolvers (DNR) to enhance network security SMB encryption provides
- SMB security hardening in Windows Server and Windows Client
The latest SMB (Server Message Block) features introduced in Windows 11 24H2 and Windows Server 2025 are designed to enhance the security of your data, users, and organization Most of these features are automatically enabled by default
- SMB Encryption in Windows 11 - CyberMaterial
Windows 11 is introducing enhanced security measures for SMB (Server Message Block) encryption, providing data end-to-end encryption for outbound connections Administrators can now mandate SMB client encryption, regardless of server settings, share configurations, UNC hardening, or mapped drives
- SMB client encryption mandate now supported in Windows Insider . . .
SMB Encryption supplies SMB data end-to-end protection from interception attacks and snooping It first shipped in SMB 3 0 on Windows 8 and Windows Server 2012 Windows 10 and Windows Server 2019 added AES-GCM support for better hardware-accelerated encryption, then Windows 11 and Windows Server 2022 introduced AES-256-GCM cryptographic suites
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