Build & Maintain a Secure Network
Reqs 1–2Network security controls and secure configuration baselines for every system component touching the cardholder data environment.
- §1.2.1 Network security control rulesets reviewed every 6 months with formal approval
- §1.2.4 CDE inventory + network segmentation diagram current and accurate
- §2.2.1 Configuration standards defined for every system component type
- §2.3.1 Wireless vendor defaults changed before installation in any CDE-adjacent network





