Rio de Janeiro plays a key role in Brazil’s digital economy. The city’s major industries rely on strong cybersecurity leadership to manage risk and protect operations. As threats rise, the region’s security executives guide programs that support business resilience and secure transformation.
Below is a list of ten active Chief Information Security Officers and senior security leaders shaping Rio de Janeiro’s cybersecurity landscape in 2025.
Bruno M
A seasoned CISO with extensive experience in cybersecurity operations, compliance, and governance. Bruno has held senior security roles at Prudential do Brasil and Grupo Contax, driving security initiatives and regulatory adherence.
River de Morais e Silva
Currently the CISO at Oi, one of Brazil’s largest telecom companies, leading their information security strategy with a focus on innovation and threat mitigation.
Fábio Szescsik
A cybersecurity leader known for his roles in Finaxis Brasil and Positivo Informática, Fábio specializes in governance and incident response within large enterprises.
José Fontenelle
A cybersecurity veteran managing cyber defense centers and GRC programs while educating the next generation of security professionals in Rio de Janeiro.
Fernando Camarotti
Serving as Global Chief Information Security Officer at Vale, Fernando commands security efforts for one of the world’s largest mining companies, headquartered in Rio.​
Arnaldo Fernandes
An expert in IT infrastructure management and cybersecurity, contributing significantly to Rio de Janeiro’s corporate security environment.
Cesar Oliveira
Former Deputy CISO at Vale, now a cybersecurity strategist focused on risk management and information security frameworks.
Eser Helmut Amorim
With over 20 years of experience, Eser excels in audit, compliance, and IT governance roles, leading security programs in Brazil.
Victor Leite
Specializing in Governance, Risk, and Compliance (GRC), Victor has led cyber security initiatives optimizing corporate governance frameworks.
Fabio Araujo
Currently CISO at Valia Previdência, Fabio is an expert in cloud security, incident response, and regulatory compliance, and an active contributor to security standards like ISO 27001.
These security leaders continue to shape Rio de Janeiro’s cyber landscape. Their work strengthens resilience, protects essential services, and supports the region’s digital growth.