According to one embodiment, a system including a memory and a processor is provided. The memory may be operable to store a plurality of accounts. Each account may be associated with a user and with a mobile device. The processor may be coupled to the memory and operable to receive user credentials, sent by a requesting user and originating from a requesting device, in conjunction with a request for authentication. The user credentials may include an account identifier. The processor may be further operable to retrieve, from the plurality of accounts, the account associated with the account identifier that matches the account identifier included in the user credentials. The processor may compare information included within the user credentials with information associated the account. If the information included within the user credentials matches the information associated with the account, the processor may send an authentication-confirmation message to a second device.