:428
(TCP/UDP)
OCS-CMU
Low RiskTCP/UDP — Messaging
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Port Overview
Port Number
428
Service Name
OCS-CMU
Transport Protocol
TCP/UDP
Category
Messaging
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 428?
OCS CMU. Carnegie Mellon University Office Communication System protocol.
TCP/UDP
Messaging
Security Considerations
Port 428 (OCS-CMU) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.
Recommendation: Standard security practices apply. Keep software updated and monitor access.