Hacker Vs Cracker

                                                                   hacker 

     --> One who is proficient at using or programming a computer; a computer buff.
     --> One who uses programming skills to gain illegal access to a computer network or file.
     --> but a hacker never use the resources.

Cracker

--> A person who breaks into a computer system without authorization, whose purpose is to do damage (destroy files, steal credit card numbers, plant viruses, etc.). Because a cracker uses low-level hacker skills to do cracking, the terms "cracker" and "hacker" have become synonymous with the latter becoming the most widely used term. See hacker, ECPA, CFA and virus.

--> A person who reverse engineers software and modifies it for fun. Often applies to game software. See disassembler.

-->A cracker are able to use the resources

                          
    A Cracker is more Dangerous than a  hacker