# SC NET 001 Network Segmentation

**Control Domain:** Network Security

**Control ID:** `SC-NET-001`

## Control Description

This control ensures that networks are segmented to separate critical systems, sensitive data, and user zones, which limits lateral movement in the event of a breach.

Why it matters: Without proper segmentation, attackers can navigate freely throughout the network once they gain access, significantly increasing the risk of a widespread compromise.

## Linked Tests

The following tests from the SureCloud Continuous Control Monitoring (CCM) library are mapped to this Control:

| Test ID     | Test Name                                        | Test Type | Example Evidence                      |
| ----------- | ------------------------------------------------ | --------- | ------------------------------------- |
| TST-NET-002 | Network Infrastructure Is Documented And Secured | Document  | EV-101 – Network Architecture diagram |

## Regulatory Citations

> Citation IDs only are listed below (sourced from the Control-level mapping). Refer to the source framework for full citation text.

| Framework                       | Citation IDs        |
| ------------------------------- | ------------------- |
| ISO/IEC 27001:2022              | A.8.20, A.8.22      |
| SOC 2 — Common Criteria         | CC5.3, CC6.6        |
| SOC 2 — Confidentiality         | C1.1                |
| NIST CSF v2.0                   | ID.AM-03, PR.IR-01  |
| ISO/IEC 27017:2015              | 13.1.1, 13.1.3      |
| Secure Controls Framework (SCF) | AST-04, NET-03      |
| PCI-DSS                         | 1.2.3, 1.2.4, 1.3.3 |


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