TÉCNICAS PARA REDUÇÃO DO ESCOPO PCI EM INFRAESTRUTURAS DE PAGAMENTOS: FORTALECENDO COMPLIANCE E SEGURANÇA EM LARGA ESCALA

The increasing complexity of security requirements in digital payment environments has driven organizations to adopt PCI scope reduction strategies as a way to balance regulatory compliance, operational efficiency, and cyber risk mitigation. This article aims to critically analyze the main contemporary techniques for PCI DSS scope reduction, such as tokenization, end-to-end encryption, network segmentation, outsourcing to certified providers, and the use of isolated cloud environments. The research is based on a literature review and document analysis, drawing from factual data sourced from technical reports, normative publications, and case studies. The results indicate that these practices significantly contribute to the streamlining of controls, the reduction of the attack surface, and the improvement of information governance in transactional systems. It concludes that the integrated adoption of these techniques represents a viable and effective strategy for organizations that operate with large-scale payment data, although its implementation requires technical maturity, continuous validation, and alignment with the principles of shared responsibility. Keywords: PCI DSS; information security; scope; compliance; sensitive data.