Some changes were made to alert settings in my Orion implementation, and I'm trying to see how it happened and/or who did it. Is there a change log somewhere? I tried looking around in the web interface and the file system but didn't find much.
Go to Alerts & Activities and then Message Center.
Select "Show Audit Events" and then you should be able to see the audit log.
@tje210 - Under the main nav, you may want to look at Alerts & Activity, and Message Center. There you can filter to Event Messages and Audit Events.