In this age of information and surveillance, privacy has become a necessary watchword—a countermeasure to the constant documentation of what we say, do, buy, and consume. Though the implications of the term have changed with the rise of the internet and other digital technologies, people have long been wary of intrusion into their personal life. In his 1975 book, Discipline and Punish, Michel Foucault wrote about the rise of recordkeeping in 18th- and 19th-century Europe, namely the government practice of maintaining detailed legal accounts of surveillance and detention. He argued that the state “made of this description a means of control and a method of domination.”