Massachusetts Institute of Technology - A Systems Theoretic Approach to the Security Threats in Cyber Physical Systems: Applied to Stuxnet
The emerging smart technologies, while benefiting customers and companies, also provides adversaries including insiders with powerful tools to affect the physical world. Using traditional IT systems in cyber physical systems (CPS) unfortunately provides potential attackers with many new opportunities to disrupt the services provided by CPSs. In this paper, we examine Stuxnet and utilize a system-theoretic approach taking both physical and cyber components into account to address the threats posed by Stuxnet. We show how such approach is capable of identifying cyber threats geared towards CPSs and provide practical recommendations that can be utilized by CPS designers in building a secure CPS.