How encryption safeguards sensitive payment data

Encryption protects online payment data by converting sensitive information such as card numbers and transaction details into unreadable code that can be accessed only with authorised decryption keys, helping businesses reduce breach and fraud risks while meeting standards such as PCI DSS. It safeguards data in transit through protocols such as TLS, at rest through secure storage and key-management systems, and throughout an entire transaction via end-to-end encryption. Common payment-security methods include SSL/TLS, which establishes secure browser-to-server connections using certificates and session keys, and AES, a symmetric encryption standard available in varying key strengths. Effective encryption depends on careful key management, ongoing monitoring, and regular security updates as cyber threats evolve. Payment providers can help businesses manage these requirements through built-in, compliant security systems; Airwallex states that its Payments solution uses TLS v1.2 and AES-256 to encrypt customer data during transmission and storage.

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