Thank you, someone who actually knows what they are talking about.
Let me get this straightened out for everybody..
First of all, the word Freaker isn't even a word. I think you are trying to refer to the term "Phreaking", which is "the activity of a subculture of people who study, experiment with, or explore telecommunication systems, like equipment and systems connected to public telephone networks".
And for the definition you were using, you would be talking about a Cracker or a Blackhat Hacker.
Black Hat Hacker: hackers who specialize in unauthorized penetration
Cracker: a programmer who cracks (gains unauthorized access to) computers, typically to do malicious things; "crackers are often mistakenly called hackers"
"Some frown upon using hacking as a synonym for security cracking -- in distinct contrast to the larger world, in which the word hacker is typically used to describe someone who "hacks into" a system by evading or disabling security measures."
Etc Etc