Microsoft Eliminates RC4 in Kerberos to Enhance Security
First seen 27 Jan 2026, 23:52 UTC
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Microsoft is implementing phased changes to Kerberos to remove RC4 encryption due to a newly discovered vulnerability (CVE-2026-20833). This change aims to strengthen Windows authentication security and mitigate risks associated with weak encryption. Organizations are urged to update their domain controllers to support AES-based encryption.
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