Demystifying zero trust in OT
What happened
Process Online outlines why OT needs a zero-trust model: IT/OT convergence and remote support have removed the old air-gap protections. It calls out ICS longevity and OEM remote-access requirements as operational constraints that make staged ZTA rollouts necessary. Watch whether integrators and OEMs publish specific remote-access or warranty clauses that force contractual change
Why the category manager should care
Plan for staged ZTA adoption; don’t push blanket technical controls onto long-commissioned ICS without acceptance testing and warranty alignment
Key facts
- OT devices often remain in service for 20 years or more
- Zero-trust recommended as a continuous verification model for users and devices