WN25-SO-000030 - The Windows Server 2025 built-in administrator account must be renamed.

Information

The built-in administrator account is a well-known account subject to attack. Renaming this account to an unidentified name improves the protection of this account and the system.

Solution

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> Accounts: Rename administrator account to a name other than 'Administrator'.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Windows_Server_2025_V1R1_STIG.zip