{
  "node_id": "pci-dss-v4-requirement-4",
  "title": "PCI DSS v4 Req 4 (Transmission)",
  "domain": "Cloud & SaaS",
  "version": "1.1.0",
  "last_updated": "2026-04-10",
  "bluf": "PCI DSS v4 Requirement 4 (Protect Cardholder Data with Strong Cryptography During Transmission) revolves around the security of the clear-text card data as it travels across the any 'Open, Public' networks (e.g., the Internet, Cellular, Wireless). it mandates the use of the 'Strong Cryptography' (TLS 1.2+, IPsec, SSH) to the ensure that the card data is not the intercepted or the tampered during the transit.",
  "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": 7
}