"Banks regularly use Faraday-shielded rooms to protect servers."
But they do not seem to be air gapped, as then the use of the data would be very limited.
I would assume, the main interest in air gapped systems are top secret, high value research projects, as well as many secret agencies, who must assume, that their IT equipment comes with a backdoor installed at hardware level.
Other ways of getting the virus in: at some point, the computer needs software and data. When the data comes in, so can a virus and uae a unknown zero day exploit.
"Banks regularly use Faraday-shielded rooms to protect servers."
But they do not seem to be air gapped, as then the use of the data would be very limited.
I would assume, the main interest in air gapped systems are top secret, high value research projects, as well as many secret agencies, who must assume, that their IT equipment comes with a backdoor installed at hardware level.
Other ways of getting the virus in: at some point, the computer needs software and data. When the data comes in, so can a virus and uae a unknown zero day exploit.