Device lock: unable to access system

the Quad Cortex is a rather expensive and compact device, and therefore vulnerable to theft.
I don’t see this as a remote possibility at all, especially in live contexts, transportation etc.
Is it possible to implement a password in the power-on phase to access the device’s functionality?
If the password is lost, it can only be retrieved by e-mail, and it is impossible to reset the machine to bypass the password request.