Field
Field Device
Collective term for instrumentation and final elements installed on the process.
Medium criticalityLevel 0
What it does
Measures or acts on physical conditions.
Typically locatedThe process area.
At a glance
PurdueLevel 0
CategoryField
Protocolshart, profibus, foundation-fieldbus
Talks toControllers, Asset management
Common vendorsMultiple
Why should I care?
Field Device sits at Level 0. Compromise here is not just a data problem — it changes what the physical process does or what operators can see and control.
Common security problems
- Rarely inventoried at the device level
- Physical access is the dominant risk
If it is compromised
- Distorted process view or action
What to monitor
- Configuration change records
- Diagnostics
How to defend it
- Physical security and formal change control
Related