A user account was unlocked
A previously locked-out user account was unlocked by an administrator or self-service portal.
Event ID 4767 logs when an account lockout is manually cleared (`TargetUserName` unlocked by `SubjectUserName`).
Failure Reason / Root Cause:
Helpdesk unlocking account following false-positive lockout or user verification.
Raw Event XML snippet
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
<EventID>4767</EventID>
<Version>0</Version>
<Level>0</Level>
<Task>12544</Task>
<Opcode>0</Opcode>
<Keywords>0x8020000000000000</Keywords>
<TimeCreated SystemTime="2026-07-17T09:54:44.906Z" />
<EventRecordID>1048576</EventRecordID>
<Correlation />
<Execution ProcessID="612" ThreadID="1024" />
<Channel>Security</Channel>
<Computer>DC01.enterprise.internal</Computer>
<Security />
</System>
<EventData>
<Data Name="SubjectUserSid">S-1-5-18</Data>
<Data Name="SubjectUserName">SYSTEM</Data>
<Data Name="SubjectDomainName">NT AUTHORITY</Data>
<Data Name="SubjectLogonId">0x3e7</Data>
<!-- Event telemetry fields specific to A user account was unlocked -->
</EventData>
</Event>Recommended actions
- Correlate unlock requests with IT ticket logs to ensure attackers are not repeatedly calling helpdesk to unlock accounts under active brute-force.