The built-in administrator account must be renamed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-220911 | WN10-SO-000020 | SV-220911r991589_rule | CCI-000366 | medium |
| Description | ||||
| 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. | ||||
| STIG | Date | |||
| Microsoft Windows 10 Security Technical Implementation Guide | 2025-02-25 | |||
Details
Check Text (C-220911r991589_chk)
Verify the effective setting in Local Group Policy Editor.
Run "gpedit.msc".
Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options.
If the value for "Accounts: Rename administrator account" is set to "Administrator", this is a finding.
Fix Text (F-22615r555219_fix)
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".