An IP address is the identification of any connection in the world, in SlaveHack you are assigned your own virtual IP address, each NPC also has one. In order to begin hacking, you must start obtaining IP addresses and the default software, To begin see the Beginner's Guide.

You can find the IP addresses for each NPC in the NPC menu, to access a IP address use the Virtual Internet Browser, enter the IP address at the top and click Connect.