Hackers is the white hats. White hat is a term used to described ethical hackers that stay entirely with the law. They may be hired by companies to test the network security software. They never access a system or network illegally, and they work hardly to expose in the system. With a goal to improving the security of the system company. They make a much better choice for companies looking a professional hacker to secure the system.
Cracker is the black hats. They are the opposite of the white hat, a cracker breaks into systems illegally for personal gain, black mailing, or bragging. Few crackers are skilled enough to create their own tools to perform correctly their job. It’s important to acknowledge that crackers are a dangerous threat to all of us. A cracker doesn’t need to be particularly knowledgeable or skillful.
Besides the ethical difference between the two, the major factor that separates hackers from the vast majority of crackers is an understanding of computer systems and the ability to create software. A real hacker can write code in one or more languages and understands what that code does and why it works (or doesn’t). The majority of crackers have little programming ability, or none at all, and usually don’t understand how the tools they use work. If a machine gets hacked by a teenager, it’s usually because the administrator didn’t maintain the machine and apply patches for known vulnerabilities.
Freedom of Coding: He May Be a Black Hat, White Hat or a Phreaker 