Mobile payment apps make it easier for users to transfer money, pay bills, manage accounts, and complete transactions on their smartphones. However, as fintech platforms handle sensitive financial and personal information, payment security must be a priority from the beginning of development.

A secure payment system protects users from fraud, unauthorised access, and data breaches while building trust in the platform. Here are the essential security practices developers should consider when building fintech mobile applications.

1. Implement Strong User Authentication

Authentication is the first line of defence against unauthorised access. Fintech apps should use multi-factor authentication (MFA), biometric authentication, and secure login mechanisms where appropriate.

Require additional verification for sensitive activities, such as adding a new beneficiary, changing account details, or making high-value transactions.…