A wireless device stores financial account card data and data relating to authorized users of the financial account. The wireless device is configured to perform the method of receiving card data associated with a financial account, storing the card data in a memory of the wireless device, receiving identification data of authorized users of the financial account card, storing the identification data in association with the stored card data in the memory of the wireless device, receiving a request to authorize a transaction using the financial account card, receiving identification data of an individual associated with the requested transaction, determining whether the identification data of the individual corresponds to the identification data of the owner or the stored identification data, and authorizing the transaction based on a determination that the identification data of the individual corresponds to the identification data of the owner or the stored identification data.