Virtual private networks, or VPNs , are an essential tool in any internet privacy toolbox. They mask your public IP address , encrypt your traffic by routing it through secure servers and can make it appear as if you’re connecting from another location.

To use a regular VPN, you have to log in on each device that you want it to be activated, and you’re typically limited to a certain number of active sessions at any given time.

You can also install a VPN directly onto your Wi-Fi router to protect all the devices that connect to it. That's really a question of convenience, according to David Barger, a network consultant at Crosstalk Solutions .

“When you use a separate application you have to remember to turn it on every time you want that extra peace of mind," Barger

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