One of the most critical skills information security groups have is the ability to proactively find threats in their environment – a process known as hunting. Great hunting is the combination of deep knowledge about your environment with the ability to understand the details of changes that take place in real-time. Knowledge is the greatest advantage information security professionals have when determining the best defense against an adversary.
Attackers must have extensive knowledge about your infrastructure to find weak spots to exploit. You have an advantage by knowing what are normal patterns of behavior from your users and systems.