Like all good myths, there is a kernel of truth to what we believe about air gaps. To get at the power of this mythology, it is worth investigating its origins and what factors gave rise to the notion that physical separation would secure technologies.
The air gap, a cybersecurity countermeasure that isolates digital assets to keep them out of reach from malicious actors, is the subject of many industry myths.
Conventional wisdom around physical air gapping operational technology (OT) has a certain allure to it — cutting off connections should mean no threats. But buying into this assumption is not the whole picture and the tradeoffs that result from not being fully aware of how air gapping affects organisations often prove costly.

