PCI DSS v4 mandates stricter payment security standards impacting third-party scripts and continuous monitoring. Businesses risk $100,000/month fines for non-compliance, highlighted by Abercrombie & Fitch's experience with audits, script security, and tamper detection. Key challenges include managing third-party dependencies and ongoing compliance. A&F’s journey stresses the importance of proactive risk assessment and continuous monitoring to mitigate potential attacks and fines. Compliance isn't a one-time effort; regular audits and vendor reviews are essential. The deadline looms on March 31, 2025, emphasizing immediate action for security and compliance.
https://thehackernews.com/2025/03/what-pci-dss-v4-really-means-lessons.html