The word Phreaker is used to describe someone who, most commonly, hacks phones
for free calls. However, the term has stretched since it's beginning, and now a Phreaker can be anyone, anywhere, who indulges in the "
invisible" sort of illegal activity, such as housebreaking, hacking, phonetapping and so on. The word "phun" is used to set apart the fun of
normal people from the phun of phreakers.