There is disclosed a system and method of making an electronic payment from a wireless mobile device. In an embodiment, the method comprises: providing an electronic wallet, the electronic wallet having a persistent store for storing data for one or more payment cards and a wallet security module configured to verify authorized access to the electronic wallet; and permitting access to the data for one or more payment cards stored in the electronic wallet upon verification of authorized access by the wallet security module. In an embodiment, the wallet security module is configured to store one or more of a password and biometric data, and the method further comprises: comparing any subsequently input password or biometric data to a password or biometric data previously supplied by the authorized user and stored in the wallet security module; and if the comparison matches or is within an acceptable range, then permitting access to the data for one or more payment cards stored in the electronic wallet.