Logon Logoff Event: 551

Event ID 551 – User Initiated Logoff

This event is generated when a user who had logged on interactively or by terminal services has initiated the logoff process. If this event is not registered, it implies that either the system was shut down before the process could be completed, or, that the access tokens are not being managed properly.

This log data provides the following information:

• User Name
• Domain
• Logon ID

Why does event ID 551 need to be monitored?

• To prevent privilege abuse
• To detect abnormal and potentially malicious activity
• To get information on user activity (like user attendance and peak logoff times)
• To ensure compliance with regulatory mandates

Pro Tip:

With in-depth reports, real-time alerts, and graphical displays, ADAudit Plus tracks all logoff types, helping you meet your security, operational, and compliance needs with absolute ease.