Dividing a data processing device into separate security domains

This invention creates separation between personal applications and corporate applications on a data processing device, so that both types of applications can run simultaneously while complying with all required policies. This enables employees to use their personal devices for work purposes, or work devices for personal purposes. The separation is created by dividing the data processing device into two or more "domains", each with its own policies. These policies may be configured by the device owner, an IT department, or other data or application owner.