Event ID: 4740

A user account was locked out

A user account was locked out.

    Security ID:        %4
    Account Name:       %5
    Account Domain:     %6
    Logon ID:           %7

Account That Was Locked Out:
    Security ID:        %3
    Account Name:       %1

Additional Information:
    Caller Computer Name:   %2

This event generates every time a user account is locked out.

For user accounts, this event generates on domain controllers, member servers, and workstations.

ISO 27001:2013 A.9.2.1
NIST 800-171: 3.1.8
NIST SP 800-53: AC-7
CMMC v2 L2: AC.L2-3.1.8

Microsoft Documentation

Event ID - 4740

Name Field Insertion String OS Example
Account Name TargetUserName %1 Any Auditor
Caller Computer Name TargetDomainName %2 Any ComputerName
Security ID TargetSid %3 Any S-1-5-21-3457937927-2839227994-823803824-2104
Security ID SubjectUserSid %4 Any S-1-5-18
Account Name SubjectUserName %5 Any Server1$
Account Domain SubjectDomainName %6 Any Domain
Logon ID SubjectLogonId %7 Any 0x3e7

Lookup Audit Policy Configuration Settings

C:\> AuditPol.exe /get /subcategory:"User Account Management"

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