CISO appointment
Nubank appoints John Walton as Chief Information Security Officer
John Walton is the Chief Information Security Officer of Nubank.
Records: Nubank · John Walton
| Person | John Walton |
|---|---|
| New role | Chief Information Security Officer |
| Company | Nubank |
| Announced | June 2026 |
| Added to the record | August 1, 2026 |
| Source | Nubank newsroom |
What this move signals
Nubank appointed John Walton as Chief Information Security Officer, announced in June 2026; day-level precision has not been established from available coverage.
One of the world's largest digital banks by customer count, Nubank operates across Brazil, Mexico, and Colombia under multiple central-bank regimes — a CISO seat where regulatory breadth rivals technical depth.
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