How to develop custom application for banking users with all securities features?

[Charies]

Hi everyone,

I'm looking to develop a custom banking application and I want to ensure it includes all the essential security features to protect user data, transactions, and sensitive information. This will be a mobile/web app for banking users, so I’m particularly concerned about best practices for authentication, encryption, secure APIs, compliance (like PCI DSS), etc.

If anyone has experience or insights, I’d love your help on:

• Key security features to include in a banking app

• Recommended tech stack for high-security applications

• How to handle secure login (biometrics, 2FA, etc.)

• Common vulnerabilities to avoid

• Any helpful tools, frameworks, or documentation

Appreciate any advice, examples, or resources you can share.

Thanks in advance!