SUMMARY
Workplace surveillance and the invasion of employee privacy have always been present under capitalism. Historically, this has mostly involved the combination of visual observation and abstract time, focusing on employee performance. However, the development of new information and communication technologies has brought important changes to the manner in which employers control employee productivity. Such digitalization or datafication of employees constitutes a qualitative change in the history of workplace surveillance—a change that reduces workers, their performance and bodies, to lines of code and flows of data to be scrutinized and manipulated.