Let's be honest: it's pretty hard to find someone who will be genuinely happy for you when you win something. When it comes to online gaming, however, that probability falls to zero. Losing a multiplayer game leaves some people so angry that they'll go out of their way to force fellow players offline. In order to do this, gamers can use tools to locate a target's IP address from just their target's Skype username and then launch a DDoS attack to overload their internet connection. It's not the most common attack vector but Microsoft has changed the way its messaging app works so that gamers, and the wider Skype community, can rest a little easier knowing it's harder for them to be tracked.