PE-4: ACCESS CONTROL FOR TRANSMISSION MEDIUM
TAILORED FOR INDUSTRIAL CONTROL SYSTEMS
ICS Control Baselines:
The organization controls physical access to [Assignment: organization-defined information system distribution and transmission lines] within organizational facilities using [Assignment: organization-defined security safeguards].
Physical security safeguards applied to information system distribution and transmission lines help to prevent accidental damage, disruption, and physical tampering. In addition, physical safeguards may be necessary to help prevent eavesdropping or in transit modification of unencrypted transmissions. Security safeguards to control physical access to system distribution and transmission lines include, for example: (i) locked wiring closets; (ii) disconnected or locked spare jacks; and/or (iii) protection of cabling by conduit or cable trays.
ICS SUPPLEMENTAL GUIDANCE
No ICS Supplemental Guidance.
RELATED CONTROLS: PE-4
NO CONTROL ENHANCEMENTS
- NIST Special Publication 800-82
- NSTISSI No. 7003