I use the App to forward my home phone calls to my cellphone. Every couple of months, after realizing that I haven't been receiving any forwarded calls for a while, I go into the Advanced Call Forwarding settings and the phone number for where the calls are supposed to be forward (my cell #) has been changed to a different number. Then I look at the call log and see that all of my home phone calls have been forwarded to that number. I think it's been the same number each time that it's happened. Any ideas why this is happening? Has my phone been hacked by this other phone number?