What authority do developers have to invade personal devices?

[Android Central Question]

I was not paranoid or worried about security on my devices until I realized I did not have control of my Google account, Facebook account, my calls or my sms. The worse though was my xfinity internet was taken over and for 2 months I was stalked and harassed and no one could help me. I started digging deep and found it was a developer that had access to apps and portals and did not need my passwords to access my accounts. My SIM card was copied in my Samsung phone and my data, WiFi and Bluetooth was on even though it showed me it was off. That's only the tip of the iceberg I have lived through a nightmare and found out the hard way every device you use can be controlled by an app

 

[belodion]

What app? What developer?

 

[LJ Sal]

Mine was Kik but a modded one from a unknown source. Not sure if it was a developer since it was a modded Kik.

 

[Scienceguy Labs]

Hate to say it, but this is exactly why installing apps from unknown sources is a really bad idea.
I would factory reset my phone, get on a computer, and start changing all of my passwords pronto.