  The Internet of Things (IoT) is already transforming industries, cities, and
homes. The economic value of this transformation across all industries is
estimated to be trillions of dollars and the societal impact on energy
efficiency, health, and productivity are enormous. Alongside potential benefits
of interconnected smart devices comes increased risk and potential for abuse
when embedding sensing and intelligence into every device. One of the core
problems with the increasing number of IoT devices is the increased complexity
that is required to operate them safely and securely. This increased complexity
creates new safety, security, privacy, and usability challenges far beyond the
difficult challenges individuals face just securing a single device. We
highlight some of the negative trends that smart devices and collections of
devices cause and we argue that issues related to security, physical safety,
privacy, and usability are tightly interconnected and solutions that address
all four simultaneously are needed. Tight safety and security standards for
individual devices based on existing technology are needed. Likewise research
that determines the best way for individuals to confidently manage collections
of devices must guide the future deployments of such systems.
