The debate was introduced by Professor Vincent Blondel, rector of UCL (in French).

The disclosures of the world wide activities of the NSA and the possibilities of the social media have shown the threats to the citizens and their privacy, usually characterized by « Big data, Big business, Big Brother ». The speaker, a specilist of complex netowrks, will discuss the state of the art of the technology and the possibilities big data offer to companies and the challenges to the citizens and the politicians.