A VPN has long become a tool that most users perceive as a universal means of protecting privacy. It creates an encrypted tunnel between your device and the VPN provider’s server, hiding your IP address and making data interception more difficult. However, when it comes to mobile internet, this mechanism does not work as flawlessly as it may seem. Even with the best VPNs, the user does not always receive full privacy, and the mobile operator still retains a significant amount of information about your activity. To understand why this happens, you need to understand how mobile internet works, what data the operator has, and what limitations the VPN itself has.