I finding changes made in my settings in my accounts and apps even after I have changed them.
Some sites my screen name and passwords already entered. Other times I have entered my information many times and it keeps coming back saying " the password or screen name is incorrect". I think I entered that info 8 times once.
Lastly could someone use a Captive Portal to gain access to my info. A few times I have gone to Google, Facebook, and Instagram ( I don't use the last two anymore) and checked for devices being used and found small armies logged on.
I change passwords screen names, factory resets, programs to check (After about 3-4 days I cannot access or make changes. Basically I get locked out.