trying to connect a remote site to the central
Tokenization through an HSM (Hardware Security Module) is the most appropriate solution for securely storing and using previously saved payment methods for recurring transactions.
Tokenization replaces sensitive data (like credit card numbers) with a token, which is a non- sensitive equivalent that cannot be reversed without the corresponding HSM. This ensures that sensitive payment information is never stored in an accessible format and protects customer data from breaches while still enabling the application to perform transactions.