Tokenization
Replacing a credit card number with a unique string (a token) for storage and reuse. Enables repeat charges without storing card details — reduces breach risk and supports PCI DSS compliance.
In practice
Tokenization is what lets Shopify, Amazon, and any store that saves cards charge again without the customer re-entering details. The token is worthless to a thief because it can't be used outside the system that generated it.
Common misconception
'Tokenization is the same as encryption.' It's not. Encryption converts data into a hidden but decryptable form. Tokenization replaces it entirely — there's no way to 'decrypt' a token back into a card number.
How to fix it
Customers can't save a card for future purchases? (1) Verify the gateway supports card vaulting and tokenization, (2) verify PCI compliance is intact, (3) on Shopify: Shop Pay does this automatically. On WooCommerce: WooCommerce Payments plus Stripe.
Example
A supplements store offered a monthly subscription. Its old gateway didn't support tokenization, forcing customers to re-enter their card every month. 34% abandoned at that point. Switching to Stripe with token storage cut subscription churn to 8%.
Priority
Essential for any business offering subscriptions or repeat purchases. Set up tokenization before offering 'save my card.' Without it, you can't offer a one-click experience to repeat customers.
Related terms
Keep learning. Metrics that touch the same area:
- PCI DSSPaymentsSecurity requirements for any business handling credit card data. Non-compliance means fines and account termination.
- Payment GatewayPaymentsA service for accepting payments. Stripe, PayPal, Tranzila, Cardcom. Fee: 1.4-3.5% plus a fixed amount.
- ChargebackPaymentsA customer disputing a charge through their bank. Costs the merchant: a $7-15 fee plus the lost amount. Above 1% puts the account at risk.
- BNPL – Buy Now Pay LaterPaymentsKlarna, PayPlus, Afterpay — interest-free installment payments. Raises AOV by 20-30% but carries a 2-6% fee.
- Refund PolicyPaymentsThe terms and process for refunding a customer. A generous policy raises conversions by 18% on average.
- 3D SecurePaymentsAn additional security layer for card transactions — the customer verifies identity via an SMS code or biometrics. Reduces fraud by 80%+ and shifts liability from the merchant to the issuing bank.
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