It’s common knowledge that the best way to protect your home Wi-Fi network is by using a strong password. This will keep uninvited guests away and protect your network so eavesdroppers can’t intercept your communications. And we’ve known for more than a decade now that the old Wired Equivalent Privacy (WEP) is so insecure that cracking it is practically child’s play.

Once you’ve protected your network with Wi-Fi Protected Access 2 (WPA2), here are four other vulnerability scenarios you should guard against.

Change your default wireless settings

Some modem/router manufacturers and ISPs preconfigure their gear with Wi-Fi encryption using a default password. This is often printed on a label on the device itself or on its shrink wrap, so that your wireless network is protected from the instant you take it out of the box. Great idea, right? It’s not if that Wi-Fi password can be easily discovered.

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Four lesser-known Wi-Fi security threats and how to defend against them