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  1. KB5021131: How to manage the Kerberos protocol changes related to …

    Jun 19, 2023 · If customers have followed our guidance to move to an AES-only environment where RC4 is not used for the Kerberos protocol, we recommend that customers set the value to 0x38. See …

  2. KB5021130: How to manage the Netlogon protocol changes related to …

    Apr 5, 2023 · Rejection of RC4 Netlogon clients is based on the “RejectMd5Clients” registry key available to Windows Server 2008 R2 and later Windows Domain Controllers. The enforcement …

  3. How to manage Kerberos KDC usage of RC4 for service account ticket ...

    Jan 13, 2026 · Audit events will appear in System event logs if your domain controller is receiving Kerberos service ticket requests that require RC4 cipher to be used but the service account has …

  4. Microsoft security advisory: Update for disabling RC4

    Sep 25, 2013 · Provides a link to Microsoft Security Advisory (2868725): Update for disabling RC4.

  5. RC4 cipher is no longer supported in Internet Explorer 11 or Microsoft ...

    Aug 9, 2016 · Describes the end-of-support of the RC4 cipher in Internet Explorer 11 or Microsoft Edge.

  6. Internet Explorer 11 或 Microsoft Edge 中不再支援 RC4 密碼

    關於此更新 業界一致同意 RC4 密碼不再以密碼編譯方式安全,因此此更新會移除 RC4 支援。 透過這項變更,Microsoft Edge 和 Internet Explorer 11 與最新版的 Google Chrome 和 Mozilla Firefox 一致。

  7. CVE-2026-20833 に関連するサービス アカウント チケット発行の変更 …

    RC4 保護を有効にしたリスクを特定する、Windows Server 2012以降のドメイン コントローラーでログに記録された 9 つの 監査イベント のシステム イベント ログを 監視 します。

  8. Szyfrowanie RC4 nie jest już obsługiwane w przeglądarce Internet ...

    Informacje o tej aktualizacji W całej branży panuje zgoda co do tego, że szyfrowanie RC4 nie jest już kryptograficznie bezpieczne, dlatego w tej aktualizacji usuwana jest obsługa RC4. Dzięki tej zmianie …

  9. FIX: TN3270 Server service fails to start when RC4 encryption is ...

    Dec 22, 2015 · Fixes an issue that blocks the TN3270 Server service from starting when RC4 encryption is disabled. Occurs in an HIS 2013 environment.

  10. RC4 pre-authentication failure for the Network Service account in ...

    Jul 2, 2011 · Fixes an issue in which the Network Service account experiences logon failure on a computer that is running Windows Server 2008 R2 or Windows 7 if the default authentication type for …