Randomly going into Activation Lock.
Every once in awhile today, my iphone keeps going to an Activation Lock. I'd had the phone for years, hasn't had service in two years (really only been using it's wifi for internet, checking youtube, or listening to my music in itunes), and no one else has my ID, but it keeps getting prompted, supposedly due to someone using 'Find my iPhone'. Why is this, and how do I stop it?
iPhone 5, iOS 10.3.3