SafeCase, our smartphone-coupled security device, serves as an ExoComputer: a secondary, special-purpose computing device to the smartphone. At first blush, the concept of an independent, security-focused system parallel to the mobile device may seem straight out of left field. But viewed in context, the ExoComputer represents an architectural evolution that builds upon the established concept of the trusted execution environment, isolating a smartphone’s critical security operations from attacks against the device’s user-facing environment.
Our newest white paper, “The evolution of hardware isolation for smartphones,” looks at the successes and failures of popular architectural models and explains why our two-system approach overcomes these limitations to materially increase security. Give it a read if you’re curious about why we think the ExoComputer holds the key to the future of secure mobility.