The built-in administrator account must be renamed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-253435 | WN11-SO-000020 | SV-253435r991589_rule | 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 11 Security Technical Implementation Guide | 2024-09-12 |
Details
| Check Text (C-56888r829387_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-56838r829388_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". |