SCADA security: a review and enhancement for DNP3 based systems

摘要: Supervisory control and data acquisition (SCADA) systems are large-scale industrial sys- tems often spread across geographically dispersed locations that let human operators entire physical systems, from a single room. Early multi-site SCADA used closed networks propriety com- munication protocols like Modbus, DNP3 etc to reach remote sites. But with time it has become more convenient cost-effective connect them the Internet. However, internet connections build in new vulnerabilities, as were not designed security mind. This can matter of national if these power plants, water treatment facilities, or other pieces critical infrastructure. Compared IT have higher requirement concerning reliability, latency uptime, so is always feasible apply measures deployed systems. paper provides an overview issues threats networks. Next, attention focused on assessment SCADA. followed by relevant solutions. Finally we propose our solution approach which embedded bump-in-the-wire discussed.