We all use public WiFi. Coffee shops, hotels, public spaces, even the New York subway system offer easy and free WiFi connections that allow us to stay connected to the Internet while away from the office. The vast majority of these public WiFi networks are insecure, however, meaning that an unknown third party using easily-available tools can snoop on our conversations with relative ease. And while many email providers and some websites will secure (that is, encrypt) your communications for you (look for the "https" at the top of your browser), that doesn't cover everything you're typically doing on the Internet. Enter the Virtual Private Network, or VPN. A VPN is a secure, encrypted connection between your computer and the VPN provider's server, which can be located anywhere but most certainly is not located on the laptop of that sketchy-looking guy camped out two tables over. It protects all of your communications with the Internet, making it…
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