Best Practices for Increasing the Security of an Automation System
Historically, automation systems have relied on "security through obscurity" to avoid commputer atacks. Those days are gone. While the number of actual attacks on automation systems has been small, the tools needed to conduct these attacks are now loose in the "wild", and the potential losses from an attack are large. Requirements for MIS and MES integration with the control system, ,as well as program backup and maintenance activities, eliminate the possibility of security through lack of connectivity.