Itau.com.br

In late 2023 reports surfaced regarding a data leak involving Itaú Unibanco the largest banking institution in Brazil. The incident involved the exposure of sensitive financial and personal data from millions of customers due to an unprotected cloud storage bucket. The leaked information included full names account numbers tax identification numbers and financial transaction details. Security researchers identified that the misconfiguration allowed public access to internal files and database backups which potentially exposed the bank to significant fraud risks and regulatory scrutiny under Brazilian data protection laws.