Antonio Langiu is a student of computer engineering at the Politecnico di Torino. He got in touch with the Nexa Center attending the Rivoluzione Digitale course. In November 2014 he started an internship at the Nexa Center to study the permission models used by applications available via app stores. He also studied how the advertising network libraries, included in mobile applications, use (or abuse) permissions to collect user's data. Actually he is participating in the Neubot project and in the development of the MeasurementKit library.