Surveillance: the case for personal Cloud and against GAFAMs The concept of Personal Cloud Demonstrating a personal cloud instance and its innovative usage. Most of the Western population now uses 3 different kinds of computers: PCs,smartphones and Cloud services. Where is the room for Open Source and FreeSoftware in this new world? Software freedom is possible on the PC side, it'salready quite challenged on the smartphone world, and too little is being doneon the Cloud side. A lot of Cloud services run on open source software, butoffer in the end proprietary services that centralize user data. As EdwardSnowden's revelations have demonstrated, all of this makes mass surveillanceeconomically possible. What do we do as a community to avoid mass surveillance? What alternative dowe build? One possibility is the Personal Cloud movement, where a server (self-hosted ornot) runs a platforms that enables personal data collection through connectorsin order to run innovative apps relying on that personal data. During this short presentation, we'll see how data centralization leads tomass surveillance and how a personal cloud works.