1. A computer implemented system comprising: an access control component of a mobile device that regulates a range of access for a non-owner user of the mobile device to personal information of an owner of the mobile device, the personal information stored on the mobile device; an analysis component of the mobile device that recommends an access mode specifying the range of access, based at least in part on an amount of the personal information that is accessible by one or more applications on the mobile device, wherein the access control component regulates the range of access based at least partly on the recommended access mode; and a usage profile that designates the range of access for the non-owner user of the mobile device to the personal information, the usage profile employed by the access control component to regulate the range of access based on the recommended access mode.