Just like streaming websites and apps, official Kodi addons are often geo-blocked. By connecting to a VPN server in another country, your real IP address is masked by the VPN server, so the streaming source will see the server’s location and not yours.
We advise using a VPN with Kodi even if the addon you’re using isn’t geographically restricted. Even if a Kodi addon is used to access an official stream, the addon itself might not be official (e.g. the iPlayer WWW addon for BBC iPlayer). An addon that’s safe one day could be modified to be malicious a day later. A VPN will help protect against many common threats to Kodi users, including man-in-the-middle attacks that attempt to steal login credentials.
Finally, a VPN protects your privacy so that third parties can’t monitor what you watch, including your internet service provider.