Tokenization replaces sensitive data, such as a card number, with a stand in token that has no value if stolen. It lets a system act on payment details without exposing the real ones.
The longer version
Tokenization swaps a real identifier for a substitute. A card number becomes a token that maps back to the original only inside a secure system. Anything handling the token can route or reconcile a payment without ever seeing the underlying account number.
The security benefit is that a stolen token is useless on its own. Intercepting it does not reveal the real credential, and a token can be scoped so it only works in one context. This is why tokenization underpins much of modern digital payment.
Tokenization fits naturally with a server routed model. Because the transaction passes through a central server rather than between devices, the sensitive values can stay tokenized end to end, and the short range signal never has to carry a real credential at all.
The Parousya method
Tokenization complements the Parousya method's server routing. Since payment details live with the central server and never cross the local signal, they can be represented as tokens, keeping real credentials out of the exchange between devices.