{
  "node_id": "pci-dss-v4-requirement-1",
  "title": "PCI DSS v4 Req 1 (NSC)",
  "domain": "Cloud & SaaS",
  "version": "1.1.1",
  "last_updated": "2026-04-30",
  "bluf": "PCI DSS v4 Requirement 1 (Install and Maintain Network Security Controls) mandates the use of the 'Network Security Controls' (NSCs) (historically Firewalls) to the protect the Cardholder Data Environment (CDE). it requires the strict logical and the physical isolation of the credit card processing from the unauthorized networks through the formalized the 'Rule' and the 'Configuration' management.",
  "paywall": {
    "status": "LOCKED",
    "unlock_cost_usd": "0.01",
    "skyfire_id": "41779894-ece2-4163-9761-b3b1b76e19b0"
  },
  "crosswalks": {
    "_available_keys": [
      "nist_framework",
      "iso_standard",
      "ai_overlay_2026",
      "industry_mapping"
    ],
    "_note": "Full crosswalk values included in vault response"
  },
  "dependencies": [
    "nist-cybersecurity-framework-2-0",
    "iso-27001-2022"
  ],
  "primary_citations_count": 5
}