Not sure whether this is something to report and it is bizaar. All bounces for subscriptions come to me as webmaster. I got a bounce for a training account I use for testing and went to look at the logs. Didn't see anything odd.
I went back to the bounce notice, which was for a forum submission on one of my sandbox sites. I found several forums in that course that indicated that I, personally, had submitted a discussion item this morning. However on the specific course in the logs their is no indication of my having done this. Nor do the site logs indicate I logged in and did these activities.
It is like someone was able to login as me, but remained hidden as far as the system was concerned.
How concerned should I be, should I report this and what can I do?