In the movie Untraceable what is the job position of Diane Lane?

I have seen this question asked on yahoo answers before but the answer
given was computer forensics which is not correct because as far as I
can see computer forensics is basically data recovery.

I'm hoping someone could let me know the name of a position like this
where you protect people against cyber-criminals. If possible what
kind of education you need to get into this position as well.

Thanks in advance
Allan