How often do you have guests at your home ask for your WiFi password? Many of us think nothing of giving the password to our friends and family, or our kids’ friends. But you may not realize that you’re putting your own network security at risk. How? Guests could unknowingly download malware or connect to your network with already-infected devices, which could then infect everything else within the network. But that’s not the only reason to use a guest network.