Virtual private network - Wikipedia
https://en.wikipedia.org/wiki/Virtual_private_network
A virtual private network (VPN) provides privacy, anonymity and security to users by creating a private network connection across a public network connection.
5 Best Free VPNs of 2021 | Fast, Safe & 100% Free
https://www.top10vpn.com/best-vpn/free/
A good VPN hides your browsing activity and protects your online privacy. It also unblocks region-restricted content. Lots of free VPNs promise to do all that at zero cost, but most simply can't.