The SIM card’s underlying functionality for authentication and security has survived numerous shrinkages in form factor to the point where it can be incorporated in the device SoC as iSIM and distributed between the device and network as in cloud SIM. It has also survived the effective bifurcation of the field into smartphone SIM and IoT SIM. Now though, with growing fixed/mobile convergence and associated integration of cybersecurity under banners such as TEE (Trusted Execution Environment), there is the admittedly still distant prospect of the SIM dissolving altogether, especially on the enterprise IoT front. We would then be left with an overarching cybersecurity environment under which devices interact with enterprise networks, rather as an extension of the current cloud SIM…