Crackers

Hackers are people who legally access information on the internet which they usually would not be able to have access to, although almost all forms of hacking are highly legal their is often a distinction made between Hackers who perform such actions for what they view as good causes (such as testing security systems or combating cyber-terrorism) and those who use it for useful gain (such as stealing accounts, identity theft or (in extreme cases) trying to gain information on governments / military).