Event ID 4768: A Kerberos authentication ticket (TGT) was requested

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

A Kerberos authentication ticket (TGT) was requested.

Event 4768

Security-Auditing

Security log

Audit Success / Audit Failure

A Kerberos ticket-granting ticket (TGT) was requested: in practice, a domain logon. Logged on domain controllers.

What to check: Result Code 0x0 is success; 0x6 unknown user, 0x12 account disabled, expired or locked, 0x17 password expired, 0x25 clock skew.

Related: 4769, 4771

Message and fields (as Event Viewer shows them)

A Kerberos authentication ticket (TGT) was requested.

Account Information:
	Account Name:		…
	Supplied Realm Name:	…
	User ID:			…
	MSDS-SupportedEncryptionTypes:	…
	Available Keys:	…

Service Information:
	Service Name:		…
	Service ID:		…
	MSDS-SupportedEncryptionTypes:	…
	Available Keys:	…

Domain Controller Information:
	MSDS-SupportedEncryptionTypes:	…
	Available Keys:	…

Network Information:
	Client Address:		…
	Client Port:		…
	Advertized Etypes:	…

Additional Information:
	Ticket Options:		…
	Result Code:		…
	Ticket Encryption Type:	…
	Session Encryption Type:	…
	Pre-Authentication Type:	…
	Pre-Authentication EncryptionType:	…

Certificate Information:
	Certificate Issuer Name:		…
	Certificate Serial Number:	…
	Certificate Thumbprint:		…

Ticket information
	Response ticket hash:		…

Certificate information is only provided if a certificate was used for pre-authentication.

Pre-authentication types, ticket options, encryption types and result codes are defined in RFC 4120.