Fintech and Web3 products handle identity documents, wallet activity, and financial data a single gap in access control, key management, or API exposure can compromise user trust and regulatory standing.
Products that touch identity documents, wallet activity, and financial data carry risk that generic security checklists don't cover. A single gap an over-permissioned API key, an unencrypted field, an unauthenticated endpoint can expose user data, break compliance, and destroy trust that's expensive to rebuild.
Every service, API key, and user role gets exactly the access it needs and nothing more, reviewed as part of the build not bolted on afterward.
Sensitive fields are encrypted in the database, and all traffic between services and clients runs over TLS with no exceptions.
Every endpoint that touches sensitive data requires authentication and is rate-limited to reduce the blast radius of credential leaks or abuse.
Access to identity or financial data is logged and traceable, so incidents can be investigated instead of guessed at.
Dependencies are kept current and scanned for known vulnerabilities, and infrastructure is configured to the principle of least exposure before launch, not after an incident.
Security isn't a final review before launch it's a requirement built into architecture decisions from day one, so it doesn't get traded away under deadline pressure.