If you are using Skype to talk with friends while you are playing on CubeCraft , this will be interesting for you :3. Skype for the way they work communicates directly with your contacts using your public IP, this is not a problem a priori but are increasingly frequent "attacks" between rival players to "shoot" your connection. It is for this reason that we recommend using TeamSpeak (I think the TS is in maintenance) since it is the safest and most convenient way to communicate because it does not expose your public ip. This also occurs in Minecraft, therefore the only place where expose your public IP usually Skype. We recommend you enable this option in settings to prevent other Skype users can easily get your IP address to "attack". Step 1: Open Skype and connect to our account Step 2: We click on the top menu Tools, then Options .. Step 3: Open the Advanced panel, then Connection and mark the Allow direct connections only from your contacts. We will do this on every computer which we use Skype, this way will be a little difficult to get our public IP that can be used to do this kind of "attacks". Now you can feel a little safer. Sorry if the images are in Spanish, i couldn´t find English ones.