Is it possible to protect leaks of contact list to mobile network provider?
I got new SIM card with my current phone number. This sim-card was inserted into the new phone (GOS inside).
Surprise! I see all contacts from my old smartphone. All names are the same as they were recorded on the previous smartphone. As I remember I never chose option to record contacts to the sim card. I never allowed to send my contacts data to mobile network provider. Never used any cloud services to backup data. Also I never used old sim card with the new phone. Contact list was stored in the device memory. My mobile network provider stole my contacts from old device.
How to protect it now? Is it possible to protect contacts by GOS? Thank you.