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REQ.255 Allow access only to the necessary ports

This document contains the details of the security requirements related to the definition and management of logical networks in the organization. This requirement establishes the importance of allowing access only to the necessary ports to avoid security breaches in the system.


User segments and servers with applications or content must allow access only to the necessary ports


  1. HIPAA Security Rules 164.312(e)(1): Transmission Security: Implement technical security measures to guard against unauthorized access to electronic protected health information that is being transmitted over an electronic communications network.

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