How do VPN services work, and do they really guarantee complete anonymity?

Virtual Private Networks, or VPNs, have become one of the most popular tools for protecting privacy and bypassing blocks. The principle behind the technology involves creating an encrypted tunnel between your device and a remote provider server. All internet traffic is wrapped into this tunnel, thanks to which the internet service provider only sees the very fact of connection to the VPN server, but does not know which specific sites you visit and what data you transmit.

Nevertheless, the myth of complete anonymity with VPNs is heavily exaggerated by the marketing campaigns of many services. By using a VPN, you simply transfer trust from your internet service provider to the owner of the VPN company. If the service keeps activity logs and stores your connection history, it will be able to hand over this data upon a request from law enforcement agencies. Therefore, a key security factor is a proven zero-log policy and an independent audit of the company's infrastructure.

In addition, there are technical vulnerabilities, such as real IP address leaks via WebRTC or DNS query leaks, which are capable of de-anonymizing the user. To minimize risks, it is important to choose reliable paid services with open-source client applications that support modern encryption protocols like WireGuard. A VPN is an excellent tool for protection against wiretapping in public networks and for hiding geographical location, but it does not make you invulnerable when committing illegal actions online.