Methods and devices for obtaining authorization for a requestor to access a service are provided. In accordance with one embodiment, there is provided a method comprising receiving a requestor request for access to a service; sending an authorization request to one or more mobile devices associated with one or more authorizers on a first approval list; receiving an authorization response from the one or more mobile devices associated with the one or more authorizers on the first approval list; determining whether a predetermined level of authorization is received; and when the predetermined level of authorization is received, authorizing access to the service.