Nubank appoints John Walton as Chief Information Security Officer

São Paulo, June 8, 2026 – Nubank, one of the largest digital financial services platforms in the world, today announced the appointment of John Walton as Chief Information Security Officer (CISO). Reporting to Eric Young, Walton will lead Nubank’s information security strategy, helping the company continue to protect its platform, customers and operations while supporting its long-term growth agenda.

Walton joins Nubank with over 25 years in security and engineering leadership roles at leading technology companies. Most recently, he served as Deputy Chief Information Security Officer at Electronic Arts (EA), after holding the role of Vice President, Enterprise Security. Prior to EA, he spent more than 16 years at Microsoft in a series of senior leadership roles, including Vice President, Security Engineering. His experience spans secure product development, global security operations, cyber risk governance and regulated cloud environments.

“As Nubank becomes an AI-first company and continues to scale globally, the way we build, operate, and protect our platform is being redefined. Security is foundational to how more than 135 million customers trust us with their financial lives. John brings exactly the experience this moment requires with a track record of leading security at consumer scale in one of the most demanding digital environments in the world, where protecting hundreds of millions of users from real-time, adversarial threats is the everyday standard. That’s the same bar we have for Nubank,” said Eric Young, Chief Technology Officer at Nubank.

“Nubank has built a distinctive company at a significant scale, and few organizations in the world combine technical ambition with a mission that touches the financial lives of so many people. I’m looking forward to bringing my experience to help strengthen security and resilience as Nubank continues to scale globally and deepen what it means to earn customers’ trust every day,” said John Walton.