← PCI DSS 4.0.1 · Req 1 — Network security controls
1.2 — Network security control configuration and review
Requirement
Network security controls (firewalls and equivalents) are configured from defined standards, every allowed service, protocol and port is documented with a business justification, and NSC rule sets are reviewed at least once every six months.
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 |
|---|---|---|---|
| SOC 2 | CC6.6 | Boundary protection | network-security |
| SOC 2 | CC7.1 | Detection of configuration changes and vulnerabilities | config-management |
| ISO 27001 | A.8.9 | Configuration management | config-management |
| ISO 27001 | A.8.21 | Security of network services | network-security |
| ISO 27001 | A.8.22 | Segregation of networks | network-security |
| NIST CSF 2.0 | PR.DS-02 | Confidentiality, integrity and availability of data in transit | network-security |
| NIST CSF 2.0 | PR.IR-01 | Networks and environments are protected from unauthorised logical access | network-security |
| NIST CSF 2.0 | DE.CM-01 | Networks and network services are monitored | network-security |