Microsoft has been criticized for a lot of things over the years, but one loud and recurring critique is well founded. It involves the safety of your family and you, especially gamers.
About five years ago, Microsoft bought Skype. That's the video chatting and messaging service you may have used to see your family as you're having a phone-type conversation with them.
Gamers often use Skype, too, to chat with other gamers as they're playing multiplayer games. In case you don't know it, gamers can be quite vicious when they lose.
That includes overloading a rival's system with so much traffic that they can't log in. It's called a Distributed Denial of Service (DDoS) attack.