The cybersecurity field of operational technology (OT) is buzzing as companies increasingly realise that their production systems, manufacturing plants, chemical processing plants, or industrial control systems are at risk from cyber-attacks. This realisation is fuelled by a big uptick in hacker interest as such systems are insecurely connected to the internet and compromising them is a change from stealing credit card information.
In response to cybersecurity concerns, companies often claim that their OT systems are air gapped and not connected to the internet — so they are immune from cyber attacks via this route. The bad news is that upon further investigation, in almost all instances, such claims are found to be incorrect. The reality is that connections abound and systems light up with data flows without the company even knowing about it.