Alberto Huertas, Manuel Gil, Izidor Mlakar, Jose M. Alcaraz, Félix J. García, Gregorio Martínez, Zakirul A. Bhuiyan PROTECTOR: Towards the protection of sensitive data in Europe and the US Computer Networks 181 Elsevier 107448 2020 10.1016/j.comnet.2020.107448 https://doi.org/10.1016/j.comnet.2020.107448