1. A computer-implemented method for receiving access to secured resources, the method comprising: sending, from an application program of a computer system and for receipt by a token providing system, a first request to obtain a temporary authentication token that is able to be used to access portions of secured resources that are stored by a resource providing system, wherein the token providing system stores a primary authentication token that the token providing system uses to obtain the temporary authentication token, wherein the first request does not include the primary authentication token; receiving, by the application program and as having been sent by the token providing system, the temporary authentication token; sending, by the application program and for receipt by a resource providing system, a second request that (i) is to obtain a first portion of the secured resources, and (ii) includes the temporary authentication token to indicate to the resource providing system that the application program is authorized to receive the first portion of the secured resources; and receiving, by the application program and as having been sent by the resource providing system responsive to the application program sending the second request, the first portion of the secured resources.