To keep your online activity private, you can use a Virtual Private Network (VPN) to encrypt it. Think of everyone using the free Wi-Fi hotspot as anyone who could possibly come into contact with your postcard and read it. On public Wi-Fi networks, that’s like sending everything you’re doing on a postcard, where anyone who handles that postcard can read what it says. When you’re connected to the Internet, your online activity data gets sent and received over the network you’re using.
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