Abstract
In the cyber security landscape, the asymmetric relationship between defender and attacker tends to favor the attacker: while the defender needs to protect a system against all possible ways of breaching it, the attacker needs to identify and exploit only one vulnerable entry point in order to succeed. In this chapter, we show how we can effectively reverse such intrinsic asymmetry in favor of the defender by concurrently pursuing two complementary objectives: increasing the defender’s understanding of multiple facets of the cyber landscape – referred to as Cyber Situational Awareness (CSA) – and creating uncertainty for the attacker through Moving Target Defense (MTD) or Adaptive Cyber Defense (ACD) techniques. This chapter provides a brief overview of contributions in these areas, and discusses future research directions.
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