You connect to wi-fi from your smartphone or laptop in public places, such as airports and coffee shops. what type of service should you use to protect your communications? vpn firewall private browsing ipv6 private ip address

We can use VPN.

A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.