How are air gapped systems securely maintained?

Test

>>57182148
Encryption

>>57182164
Also hoppers can be reasonably effective.

>>57182148
>How are air gapped systems securely maintained?
I don't know, could it be the air gap?

When new updates and patches come out you just use sneakernet to get it to your systems

>>57182187
I don't know, could you be illiterate?
>>57182408
Right, but how do you ensure that the systems you access the internet with are secure?

>>57182533
Layers of security.

Also, air gapped systems are sometimes targeted by custom made malware, designed to infect machine after machine, in hopes that one of them is used to install software, updates or data on the air gapped system. Stuxnet is one example, though I'm not sure if the target was air gapped. It would have worked that way on an air gapped system though.

There are also reports of using sub audible sound from the speakers and mic for bridging an air gap, though I don't know that it's been found in the wild.