Pretty Good Phone Privacy
Mobile Network Privacy: Mobile Pro and Mobile Core
Pretty Good Phone Privacy (PGPP) is a fundamentally new type of service that gives you private mobile connectivity. In traditional mobile networks, you are identifiable by your IMSI, a permanent, globally unique identifier that is stored in your SIM card and sent to mobile towers when your phone is on. Because your IMSI never changes, and your phone connects to towers based on location and signal strength, mobile networks can track who you are and where you are located at all times. Because of this, the IMSI leaves an indelible location history, which has been used by mobile providers and numerous others, for virtually every person on the planet. IMSIs are also targeted and captured by third-party attackers using devices known as IMSI catchers, also known as Stingrays, to track a user’s presence and activity in a given location.
