Cyber kill chain is a conceptual cyber defense model that uses the structure of cyberattack as a model to build a cyber defense strategy in an organization. Furthermore, the stages in an advanced persistent threat are typically used as a framework, with cyber defense strategies considered at each stage. Besides, the cyber kill chain model works on the premise that the earlier in the lifecycle, the better to detect and defeat it with less cost.Moreover, the cyber kill chain model can work better when integrated with other defense in depth strategies.
Cyber kill chain works best for internal organizational network assets, but less effective when applied to deal with information outside of a defended perimeter in an enterprise. And the model emphasize that cyberattacks are much less expensive to deal with when they are identified and analyzed earlier in the cyberattack lifecycle.