Ubiquitous computing, ambient intelligence, and the Internet of Things (IoT): the world is quickly transforming into one in which intelligent and networked devices will be everywhere, and everything we’ve previously viewed as dumb will be infused with connectivity and awareness. The ability of objects in our environment to interact with us on this level presents a host of social challenges, some of which we are just now facing. One key challenge is how these objects will respect the privacy of the individuals they encounter. Addressing that challenge requires an understanding of privacy and, in particular, the role that notice and consent has played in mitigating privacy risks.