Hello all. I'm interested in setting my Wi-Fi internet as a VPN. The reason for this is so I can have a certain amount of security when using Kodi. I run Kodi on both my Apple Mac mini that is wired to my router & a FireTV stick running from my Wi-Fi network. I have BT fibre optic and my Wi-Fi is via a BT hub 3 router. I have no knowledge of VPN's and how to set one up. Are they secure? Are they free or expensive? Etc. Any advice would be appreciated. Thanks.