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How Stuxnet Spreads

The Stuxnet worm is a sophisticated piece of computer malware designed to sabotage industrial processes controlled by Siemens SIMATIC WinCC and PCS 7 control systems. The worm used both known and previously unknown vulnerabilities to install, infect and propagate, and was powerful enough to evade state-of-the-practice security technologies and procedures. Since its discovery, there has […]

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Control Valves in Process Safety Applications

Update: I received great news from Riyaz that the ISA Kuwait section has agreed to let us upload and link to their December 2009 newsletter containing Riyaz’s article, When is a Safety Integrity Level (SIL) Rating of a Valve Required? I’d like to thank the ISA Kuwait staff and encourage readers in this region to join and participate. […]

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