4 Best Practices for Secure Online Payment Processing
Blog post from Basis Theory
Secure payment systems protect customers from fraud and identity theft while helping merchants avoid fines, legal liability, reputational damage, and the potential loss of card-processing privileges. A central recommendation is to keep personally identifiable information and card data outside a merchant’s systems by using a hosted payment service provider, which stores sensitive data and returns tokens, potentially reducing PCI-DSS compliance scope but introducing fees and provider dependence. Merchants that retain sensitive data should use tokenization in addition to encryption, since encrypted data may be exposed if decryption keys are compromised, whereas tokens do not reveal the underlying information. The material also emphasizes limiting employee access to only the transaction data needed at a given time through controlled browser-based interfaces and token-vault access. Finally, it recommends choosing a reliable tokenization provider with secure APIs, a PCI-DSS Level One-certified token vault, and tools for preventing customer data from entering, being stored in, or being removed from internal systems.
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