Manufacturing · OT Architecture · Plant Engineering · Identity
Use machine identity to enforce factory-cell boundaries
Can a machine authenticate only to the controllers, brokers, and services required for its production role?
Operational pain
Cloned images, shared certificates, and flat broker credentials let one compromised machine impersonate peers or cross production cells.
Trigger
Smart-factory rollout, segmentation programme, or line reconfiguration.
QNSI contribution
Connect the decision to a controlled security path
Map machine identities, issuers, algorithms, authorized services, line ownership, and rotation constraints in QNSI.
Decision artifact
A cell-level machine trust matrix with shared identities, unauthorized reach, and enrollment remediation.
What still requires validation
The manufacturer tests enforcement, production timing, fail-safe behavior, maintenance access, and recovery.
External problem context
Primary sources
These sources establish the external requirement or risk context. They do not endorse HEOSSI or prove that QNSI completed this scenario.
Evidence boundary
What this page does—and does not—prove
This is a product evaluation pattern, not a customer case study, certification, legal opinion, regulator endorsement, or claim that a production deployment completed the described work.