> It only matters if the machine is online, and they often aren't. No. Really, you shouldn't think that. It's really bad security practice. https://en.wikipe

> It only matters if the machine is online, and they often aren't. No. Really, you shouldn't think that. It's really bad security practice. https://en.wikipedia.org/wiki/Stuxnet https://en.wikipedia.org/wiki/Stuxnet It is typically introduced to the target environment via an infected USB flash drive, thus crossing any air gap.