Caruso, CostantinaDimitri, AndreaMecella, MassimoHühnlein, DetlefRoßnagel, HeikoSchunck, Christian H.Talamo, Maurizio2017-06-202017-06-202016978-3-88579-658-9The economy of an advanced country is, every day more, based on complex information systems and interconnected networks that made its cyberspace. Security in this cyberspace is an essential requirement. In Italy a national lab for Italian government has been constituted. In this framework identity and identity management systems has been studied. The depicted scenario defines new open questions and new challenges. In this paper we propose to deal with identity management in complex systems using analytical tools coming from anomaly detection for big data.enText/Conference Paper1617-5468