Addressing the Adversary

The fundamental nature of cyber security is predicated on the notion of an adversary and the adversarial nature of cyber security is a key feature that differentiates it from most other fields of science. This chapter will explore that adversary in more detail, since without an understanding of who you are protecting against, you will be at a disadvantage. Research is necessary to provide the required data to inform an adversarial approach to security, and the ability to model and simulate adversaries is a fundamental requirement in performing research to answer questions that involve adversarial actions or effect.