A secure boot is provided for a breakout system having multiple subsystems at the edge of a mobile data network. The secure boot utilizes two trusted platform modules (TPM) to secure multiple subsystems. Further described is utilizing a first TPM to boot a service processor and then utilizing a second TPM to secure boot two additional subsystems. Booting of the final subsystem is accomplished in a two step process which first loads a boot loader and verifies the boot loader, and then second loads an operating system load image and verifies the operating system code.