Abstract

Supervisory control and data acquisition (SCADA) and industrial control systems monitor and control a wide range of industrial and infrastructure processes such as manufacturing production lines, water treatment, fuel production and electricity distribution. Such systems are usually built using a variety of commodity computer and networking components, and are becoming increasingly interconnected with corporate and other Internet-visible networks. As a result, they face significant threats from internal and external actors. For example, the now famous Stuxnet (which is a Windowsspecific computer worm containing a rootkit and four zero-day attacks) was specifically written to attack SCADA systems that alone caused multi-million dollars damages in 2010. 2011 and 2012 have seen additional increases in vulnerability disclosures in SCADA and industrial control systems, further increasing the urgency of finding effective and cost efficient security measures.

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