Abstract: A system for authenticating a prospective user is disclosed. The system has an address receiver for receiving an address of an email account associated with the prospective user. It also includes a device number receiver for receiving a device number of a device associated with the prospective user. The system has an email sender for sending an email containing authentication information to the email account and a message sender for sending different authentication information to the device. The system includes a message receiver for receiving a first message and a second message from the prospective user. There is a confirmer for confirming that the first message is the authentication information contained in the email and confirming that the second message is the different authentication information sent to the device.