I’m looking into getting a flip phone with a separate number so that I can sign up for a few apps that without associating them with the complete identity profile in the data marketplace that is linked to my actual phone number.
To be clear, the apps will still be downloaded and utilized on my primary smartphone. But the phone number through which I receive verification codes during registration will be a separate device.
Has any one done this? Tips for selecting a cheapo phone and prepaid service?
The IMEI number on the phone is essentially locked to the device, swapping sims won’t change it. So a phone activated under your real name on one network could technically get traced back to you even when using a different SIM card.
Also, carrying a phone with both SIMs active is completely unprotected from correlation attacks by anyone with access to the cell tower data. It’d be blatantly obvious that the location of one SIM is the same as the other all the time.
All depends on the threat level you expect, but if you’re worried about a VOIP account being compromised to get your real number, you are talking about pretty sophisticated actors.