PCI DSS v4.0 represents a major evolution in payment card security, introducing more than 60 new requirements to address the growing complexity of cybersecurity threats and modern payment environments. Released in March 2022, the updated standard provides organizations with stronger guidance for protecting payment card data throughout its lifecycle. For retailers and other businesses that process, store, or transmit payment information, compliance is both a regulatory obligation and a business necessity. Failure to secure payment data can result in financial penalties, legal consequences, operational disruptions, and reputational damage. The guide helps retailers understand the changes introduced by PCI DSS v4.0, adopt enhanced security controls, strengthen risk management practices, and i

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