Abstract: An application-level trusted third party solution is provided based on an antiviral mobile client. The system can receive, from an application executing on a mobile device, requests to perform functions controlled by an operating system executing on the mobile device, and send status requests to an antiviral application executing on the mobile device in response to receiving the requests. The system can also receive antiviral status reports associated with the mobile device in response to sending the status request to the antiviral application, and thereafter can forward the antiviral status report to the application, wherein the antiviral status report is employed by the application to perform the functions on the mobile device.