Security remains a top concern with the IoT. High-profile breaches over the past few years illustrate hacking of IoT devices to steal personal data, money, and the services of the devices’ own CPU cycles and network connectivity. When the scope of the IoT expands to include enterprise, industrial, and municipal applications, the risks of an insecure IoT increase. But such expansion—and the benefits it affords society—will not occur until the IoT is secured. The risks are too high for stakeholders to invest in the IoT otherwise.