Bill works from home. Lately, he's been running into interference on his wifi network. Leo says that's probably just congested as just about everything now in your home connects to the internet, especially security. And when you multiply it by all the houses in your neighborhood, and that WiFi band is dealing with rush hour. How to keep them all secure? Leo says the best you can do is keep all your devices updated. But change the name of your router and make sure it's using encryption.