Curtis Works for a Small Company

Multiple Choice

Curtis works for a small company. His boss isn't too interested in security issues as he isn't certain the risk is high enough. Still, Curtis wants to implement something that can collect data about just how often they are attacked, and from this, perhaps create a business case for why security must be taken seriously. He needs to know even when a simple scan is taking place.
That tool can he use?

A) GFI Guard
B) NMap
C) Genius
D) Snort