air gap

Army Looking for Ways to Infiltrate Air-Gapped Systems

Every time a story emerges up about malware popping up on an industrial control system or someone remotely hacking into some piece of critical infrastructure, there is a reliable and justifiable chorus of experts wagging their fingers and asking, “Why in the world was that system connected to the Internet in the first place?” At this point, pretty much everyone agrees that sensitive control systems should be air-gapped, or completely disconnected from the Internet. In this way, physical, human interaction should be the only way to access such systems, which is a considerable problem for those in the business of conducting cyberwarfare.

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