There are a wide variety of possible software architectures for the secure world, and the implementation of these is almost totally dependent on the application the user is targeting.

ARM® TrustZone® technology is a system-wide approach to security for a wide array of client and server computing platforms, including handsets, tablets, wearable devices and enterprise systems. Applications enabled by the technology are extremely varied but include payment protection technology, digital rights management, BYOD, and a host of secured enterprise solutions.