Patent ID: 10552823

Abstract:
The security of a transaction conducted at a mobile device, using a one-time password to authenticate the mobile device user, is enhanced by requiring that the mobile device also be authenticated by providing a valid mobile device ID. A security server that provides the one-time password to the mobile device also provides a hyperlink that, when selected, causes a mobile device ID, such as an IMSI, to be retrieved from a SIM in the mobile device The retrieved mobile device ID is then sent to the security server. A database associated with the security server stores valid mobile device IDs, and compares the retrieved mobile device ID from the mobile device to the valid mobile device ID for that mobile device stored in the database. In alternative embodiments, the mobile device is authenticated without the use of a one-time password. In some cases the mobile device ID may be a phone number returned in an HTTP message header from the mobile device, and it is compared to a mobile device ID maintained by a bank or other entity managing the transaction.