Payment Tokenization: A guide for merchants

Payment tokenization protects online transactions by replacing sensitive card data, such as primary account numbers, with unique tokens that merchants can store and reuse without exposing the underlying information. Unlike encryption, which can be decrypted with the appropriate key, tokens cannot be reversed to reveal card details, reducing risks from data breaches, fraud, and unauthorized access. The approach supports recurring and one-click payments, can improve card approval and conversion rates, lower chargebacks and processing costs, and help businesses meet standards including PCI DSS and data-protection requirements such as GDPR and PSD2. Platforms and marketplaces can also use tokenization to simplify payouts, reduce liability, protect users, and scale across payment methods and markets. Airwallex offers network tokenization through direct integrations with major card schemes, automatically replacing card details with network-issued tokens while allowing merchants to use external token providers if preferred; the service is positioned as part of its broader global payments platform.

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