VPN marketing often implies broad, general “protection,” but a VPN has a specific, more limited function worth understanding precisely.
A VPN encrypts your internet traffic between your device and the VPN provider’s server, which is genuinely useful on untrusted networks like public Wi-Fi, where it prevents others on that same network from easily intercepting your traffic.
A VPN also masks your IP address from websites you visit, replacing it with the VPN server’s IP — useful for general location privacy, but distinct from broader anonymity, since other tracking methods like browser fingerprinting and account logins can still identify you regardless of VPN use.
A VPN does not protect against malware, phishing attempts, or a compromised device itself — it specifically addresses network traffic interception and IP masking, not the full range of cybersecurity threats marketing sometimes implies it covers.
Understanding this specific, narrower scope helps set realistic expectations rather than treating a VPN as a complete cybersecurity solution on its own.