← NIST CSF 2.0 · PROTECT — Technology Infrastructure Resilience
PR.IR-01 — Networks and environments are protected from unauthorised logical access
high
network-securitysegregation
Requirement
Networks and environments are protected from unauthorised logical access and usage.
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.
Required element 1 — any one of
networkenvironment
Required element 2 — any one of
firewallsecurity groupsegmentisolat…restrictsegmentation
Supporting terms — specificity signals
vpcprivate subnetzero trustbastionno public ingressdeny by defaultwaf
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 |
| PCI DSS 4.0.1 | 1.3 | Restrict network access to and from the cardholder data environment | 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 |
| PCI DSS 4.0.1 | 1.2 | Network security control configuration and review | network-security |
| PCI DSS 4.0.1 | 1.4 | Controls between trusted and untrusted networks | network-security |