alarm disarmed/account compromised?

So my wife and I are sitting at home getting ready to have dinner and we hear an announcement that our system has been disarmed (it wasn't armed to begin with).  At the same time I get a notification on my phone that our system has been disarmed by Remote.  Checking the timeline in the SimpliSafe app, it says that the system was disarmed via the SimpliSafe app.  I did not initiate this and neither did my wife, and now I'm worried that somehow my login credentials have been compromised and someone logged in to my account via the SimpiSafe and can see all of my pins, etc.

Coincidentally (or not), about 15-20 minutes before this happened I added three new glass break sensors to our system.  Am I just being paranoid or is this something I should be worried about?  I know I can just change my password, pins, safe word, etc. but it's a pain in the a$$ to retrain everyone, especially my wife.  Have any of you guys ever had something like this happen to you where you can't figure out who or what triggered an event like this?  

I did call SS support but they were useless and had no more information about what happened than I did.