Your firewall is an essential tool that keeps hackers from seeing your computer online. Even if they know your computer's location and IP address, the firewall keeps them from accessing your network. But many don't know if they have a firewall or not, or if it's actually working. Here's a quick way to test your network to make sure you're protected.

Is your private Wi-Fi safely guarded by a firewall? Watch this video and I'll show you how to check.

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