| Event Id | 4774 |
| Source | Microsoft-Windows-Security-Auditing |
| Description | An account was mapped for logon. Authentication Package: <Authentication Package> Account UPN: <Account UPN> Mapped Name: <Mapped Name> |
| Event Information | Cause : IIS's certificate mapping capability where users are authenticated via a client certificate which is then mapped to a Windows user account according to mapping rules defined in IIS. |
| Reference Links |
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