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Air Gapped
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Perceived as secure but this can lead to a false
sense of security
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Older SIS equipment did not typically address
cybersecurity
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Makes other aspects of operation more difficult
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e.g. patching, backups, virus updates
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may in turn introduce security risk
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Temptation to circumvent the “Air Gap” with
portable media, temporary connections etc.
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Limited visibility of SIS functions for the operator