I have two light bulbs, a Chromecast, a DVD player and a Roku, all of which have internet access. How many have passwords? Now that’s the question you need to ask. Make a list of all the internet connected devices in your house and find out which ones have a password and which don’t. If your device doesn’t use a password, find a replacement. Don’t unknowingly become a part of something more ominous. Also, make sure you have a secure password on your router.