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Event ID 4672: Special privileges assigned to new logon

Windows Event ID Lookup: What Windows event IDs mean: 4625, 4624, 4740, 6008, 41, 7045, 1102 and 3,000 more, with Windows' own message text, the fields and what to check.

Look up a Windows event ID from Event Viewer, a SIEM alert or a log export: what it means, the fields it records, and what to check. Many IDs are used by more than one source (event 41 is both a Kernel-Power crash and a boot error), so every definition is shown, the one people usually mean first. The message text is Windows' own, read from the event providers of Windows 10.0.26200.0, 2026-10-28; the notes are ours, based on Microsoft's security auditing reference.

Try: 4625, 4624, 4740, 6008, 41, 1074, 7045, 1102, 4104, 1149

Special privileges assigned to new logon.

Event 4672
Security-Auditing
Security log
Audit Success

A new logon received administrator-level privileges (such as debug, backup or take ownership). It follows the 4624 for any admin or SYSTEM logon.

What to check: Expected for administrators and service accounts; unexpected accounts here may have been added to an admin group.

Related: 4624, 4732, 4728

Message and fields (as Event Viewer shows them) 
Special privileges assigned to new logon.

Subject:
	Security ID:		…
	Account Name:		…
	Account Domain:		…
	Logon ID:		…

Privileges:		…