The article presents important issues in the debate about the power of digital platforms and their ascendancy over users, as well as over companies and governments. Surveillance, considered an economic operator by Foucault, returns to the scene as a strategy of great relevance in the success of the business model of big Techs. Technology at the service of capitalism ends up providing uses of human experience as capital. It is, therefore, in the convergence between surveillance, control and biopower as strategies of capital that the present scientific work is structured and analyzes Google’s behavioral data trackers in applications of common use in society.