← PCI DSS 4.0.1 · Req 1 — Network security controls
1.3 — Restrict network access to and from the cardholder data environment
Requirement
Inbound and outbound traffic to and from the cardholder data environment is restricted to only what is necessary, all other traffic is denied, and the CDE is segmented from other networks.
What the engine looks for
Every group below must be satisfied — by an affirmative statement, not a plan, a hedge or a denial — for the control to count as covered. A term ending in … matches any word it begins. Supporting terms do not change the verdict — they raise confidence and distinguish a policy that names a mechanism from one that gestures at a category.
Finding any of these outranks coverage — a policy that admits the gap is worse than silence.
Equivalent controls elsewhere
Matched on shared topics. Satisfying this control usually moves these too.
| Framework | Control | Title | Shared topics |
|---|---|---|---|
| ISO 27001 | A.8.22 | Segregation of networks | network-security segregation |
| NIST CSF 2.0 | PR.IR-01 | Networks and environments are protected from unauthorised logical access | network-security segregation |
| SOC 2 | CC6.6 | Boundary protection | network-security |
| ISO 27001 | A.5.3 | Segregation of duties | segregation |
| ISO 27001 | A.8.21 | Security of network services | network-security |
| ISO 27001 | A.8.31 | Separation of development, test and production environments | segregation |
| NIST CSF 2.0 | PR.DS-02 | Confidentiality, integrity and availability of data in transit | network-security |
| NIST CSF 2.0 | DE.CM-01 | Networks and network services are monitored | network-security |