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Two Common Mistakes in Fintech Backends

Two common mistakes in fintech backends: encryption and idempotency. Key points to ensure security and data integrity.

Fintech backends often make mistakes in encryption and idempotency. Encryption not only secures data but also requires the ability to retrieve it later. Choosing the right encryption method is critical, especially for sensitive information.

Moreover, ensuring idempotency in webhook processing is crucial. Payment providers retry transactions, so atomic operations must be implemented to prevent the same event from being processed multiple times. These two aspects are fundamental requirements for the secure and efficient operation of financial systems.