To prevent NTLM Relay Attacks on networks with NTLM enabled, domain administrators must ensure that services that permit NTLM authentication make use of protections such as Extended Protection for Authentication (EPA) or signing features such as SMB signing.

Consult deployment documentation or the support provider for each specific application for guidance on how to enable Kerberos authentication. Some application installers or applications register SPNs automatically. There are different options for both developers and administrators to register a SPN:

Download information. Windows Embedded Compact 2013 Monthly Update (June 2023) is now available from Microsoft. To download this Windows Embedded Compact 2013 monthly update, go to the Device Partner Center (DPC). Prerequisites. This update is supported only if all previously issued updates for this product have also been installed.

SSUs improve the reliability of the update process to mitigate potential issues while installing the LCU and applying Microsoft security updates. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions .

Continuing to use Windows 8.1 after January 10, 2023 may increase an organization’s exposure to security risks or impact its ability to meet compliance obligations. For more information, see Windows 8.1 support will end on January 10, 2023.

Resolução. Para corrigir esse problema, instale as atualizações de segurança descritas no Boletim de segurança da Microsoft MS16-101. Corrige um problema que faz com que a autenticação do NT LAN Manager falhe após a instalação de certas atualizações.

Gå til hovedinnhold. Microsoft. Støtte

サポートされているすべての Microsoft オペレーティング システムは NTLMv2 認証機能を提供します。 Microsoft Windows NT 4、Windows 2000、Windows XP、および Windows Server 2003 などを搭載しているシステムなど、既定の構成で影響を受けるシステムが主に危険にさらされます。 たとえば、既定では、Windows XP と Windows Server 2003 の両方が NTLMv1 認証をサポートします。 Windows NT の場合、ネットワーク ログオンに使用されるチャレンジ/レスポンス認証のために 2 つのオプションがサポートされます。