What is tokenization in payments?
Tokenization is a security process where sensitive payment data, such as a card number, is replaced with a randomly generated value called a token. This token has no exploitable meaning outside the specific system, which reduces the risk of data exposure during transactions.
How does tokenization work?
When a customer enters card details, the data is sent to a secure environment where it is replaced with a token. The merchant stores and uses this token instead of the actual card number for future transactions, while the real data is kept securely by a token service provider.
Why is tokenization important?
It reduces the risk of data breaches because merchants do not store actual card details. Even if systems are compromised, tokens cannot be used to perform unauthorised transactions outside the intended environment.
Where is tokenization used?
It is widely used in digital wallets, recurring billing, subscription services, and stored credential payments. It is also common in mobile payments where device specific tokens are used.
How does tokenization differ from encryption?
Encryption transforms data into a coded format which can be reversed with a key, while tokenization replaces data entirely with a surrogate value. Tokenization removes sensitive data from merchant systems rather than protecting it in place.