Windows Server 2019 account lockout duration must be configured to 15 minutes or greater.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-205795	SRG-OS-000329-GPOS-00128	WN19-AC-000010	SV-205795r958736_rule	2025-02-25	3

Description
The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the period of time that an account will remain locked after the specified number of failed logon attempts.

ℹ️ Check
Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy. If the "Account lockout duration" is less than "15" minutes (excluding "0"), this is a finding. For server core installations, run the following command: Secedit /Export /Areas SecurityPolicy /CFG C:\Path\FileName.Txt If "LockoutDuration" is less than "15" (excluding "0") in the file, this is a finding. Configuring this to "0", requiring an administrator to unlock the account, is more restrictive and is not a finding.

ℹ️ Check

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy. If the "Account lockout duration" is less than "15" minutes (excluding "0"), this is a finding. For server core installations, run the following command: Secedit /Export /Areas SecurityPolicy /CFG C:\Path\FileName.Txt If "LockoutDuration" is less than "15" (excluding "0") in the file, this is a finding. Configuring this to "0", requiring an administrator to unlock the account, is more restrictive and is not a finding.

✔️ Fix
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy >> "Account lockout duration" to "15" minutes or greater. A value of "0" is also acceptable, requiring an administrator to unlock the account.