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Merge pull request #11370 from HerbertMauerer/patch-6

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Update event-4624.md
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Vinay Pamnani 2023-03-08 14:34:54 -05:00 committed by GitHub
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windows/security/threat-protection/auditing/event-4624.md
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@ -123,6 +123,8 @@ This event generates when a logon session is created (on destination machine). I
- **Security ID** [Type = SID]**:** SID of account that reported information about successful logon or invokes it. Event Viewer automatically tries to resolve SIDs and show the account name. If the SID cannot be resolved, you will see the source data in the event.
This field may also contain no subject user information, but the NULL Sid "S-1-0-0" and no user or domain information.
> [!NOTE]
> A **security identifier (SID)** is a unique value of variable length used to identify a trustee (security principal). Each account has a unique SID that is issued by an authority, such as an Active Directory domain controller, and stored in a security database. Each time a user logs on, the system retrieves the SID for that user from the database and places it in the access token for that user. The system uses the SID in the access token to identify the user in all subsequent interactions with Windows security. When a SID has been used as the unique identifier for a user or group, it cannot ever be used again to identify another user or group. For more information about SIDs, see [Security identifiers](/windows/access-protection/access-control/security-identifiers).