Caixa Geral de Depósitos has updated its code of conduct to introduce explicit AI guardrails, mandating human review of content produced by artificial intelligence to mitigate algorithmic bias. The move highlights a growing focus on governance and accountability in financial services, while underscoring that many companies still rely on internal policies that are not formalised within their codes of ethics. The change has implications for compliance, consumer protection and how banks integrate AI responsibly into products and communications.