During this process, Stripe will also provide us with a randomly generated alphanumeric ID. This ID allows us to reference a saved card during future transactions, even though we don’t have the full card number on file ourselves. Because we store an ID instead of the full credit card number you originally provided, there is no way for anyone who is logged in to your Function Store account to obtain your full credit card information from within your account. In addition, there is no way for a third party to reverse-engineer an ID to obtain the credit card information.