Patent ID: 8042189
Filing Date: 2011-10-18
Classification: G06F

Abstract:
1. A method of forcing a mobile device into a secure state, comprising: receiving at least one request from at least one software application operating on the mobile device to obtain at least one content protection ticket; issuing at least one content protection ticket by an operating system of the mobile device in response to the at least one request if the mobile device is unlocked, and deferring issuance of the at least one content protection ticket if the mobile device is locked; waiting for a trigger, wherein the trigger is to be used as an indication to force the mobile device into a secure state; determining that the trigger has occurred; in response to determining that the trigger has occurred, revoking all content protection tickets previously obtained from the operating system of the mobile device by the at least one software application operating on the mobile device and immediately unreferencing sensitive objects referenced by the at least one software application, wherein revoking a content protection ticket for a software application prevents the software application from accessing sensitive data associated with the sensitive objects; in response to revoking all content protection tickets for the at least one software application, performing secure garbage collection upon the sensitive objects, wherein the secure garbage collection obliterates the sensitive data associated with the sensitive objects by wiping the sensitive data associated with the sensitive objects from memory to render the sensitive data unreadable; and causing the mobile device to enter the secure state, in which the mobile device cannot be accessed without authorization.