| Event Id | 639 |
| Source | Security |
| Description | Security Enabled Local Group Changed:
Target Account Name: <Target Account Name>      
Target Domain: <Target Domain>      
Target Account ID: <Target Account ID>      
Caller User Name: <Caller User Name>      
Caller Domain: <Caller Domain>      
Caller Logon ID: <Caller Logon ID>      
Privileges: <Privileges>      
Changed Attributes:      
Sam Account Name: <Sam Account Name>      
Sid History: <Sid History>     
|
| Event Information | According to Microsoft: Cause : This event record indicates that a change (other than group membership) has been made to a local group. There is no Failure Audit form of this audit event record. Group changes can have security implications. Resolution : The person with administrative rights for the computer should check to make sure there are no security implications for the change.
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Cause:
This event record indicates that a change (other than group membership) has been made to a local group. There is no Failure Audit form of this audit event record. Group changes can have security implications. |
| Reference Links | Event ID 639 from Source Security
Alternate Event ID in Vista and Windows Server 2008 is 4735.
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