Bluesnarfing is like when someone sneaks up and steals something that you have without asking. But instead of taking something physical like a toy or a cookie, they take information from your phone without you knowing it. This is bad because they could take all sorts of things like your contacts or even worse personal information like banking details. They do this by using a special device to connect to your phone's Bluetooth signal without you knowing it, and then they can access all the information stored on your phone. That's why it's important to always keep your Bluetooth turned off when you're not using it and only share your personal information with trusted sources.