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Industrial control networks have been thrust into a world of network interconnectivity the likes we haven’t seen before, and that is expanding at an astonishing rate. A cultural and technical recalibration is vital to defend ICS assets from cyber threats, and the risks and potential consequences of a successful attack against our critical infrastructure are well known, yet few would argue that these changes are slow in coming. Why is that? In part, the notion that control networks are adequately defensible against cyber attack by “air gapping” the control network from the Internet and corporate network is still believed to be the best defense.
In this presentation, the value and vulnerabilities of the air gap will be discussed, as well as specific methods to mitigate cyber threats along the attack continuum.