Denis Nesi

Senior executive with over 25 years of experience, I am an Italian-Brazilian citizen and a recognized leader in digital, cloud, and cybersecurity. I specialize in driving strategic risk management, security governance, and executing robust programs across complex business, IT, digital, and engineering ecosystems. My international background spans Latin America, the United States, and the Benelux region, having held leadership roles at global firms such as IBM, Accenture, KPMG, and Sopra Steria Benelux. I currently serve as Executive Director and CISO at Claro Brasil, where I lead a team of over 350 professionals in information security, fraud prevention, and investigation. I drive innovative solutions to enhance cybersecurity maturity and resilience in the telecommunications sector. Core competencies include: • Driving enterprise cyber transformation and operating model modernization with direct business impact. • Building cloud-native, resilient, AI-powered security architectures that create competitive advantage. • Commanding end-to-end third-party governance and supply-chain cyber resilience. • Executing risk quantification, cyber economics, and strategic capital allocation for resilience gains. • Running NextGen SOC (SIEM, SOAR, XDR, AI, UEBA) as a high-velocity intelligence engine. • Leading full-spectrum Identity Security (IGA, CIAM, WIAM, PAM) for scalable, frictionless growth. • Using GenAI for predictive threat anticipation, precision risk scoring, and fraud disruption. • Enforcing Zero Trust, least privilege, and micro-segmentation as core business enablers.