Risks and security of internet and systems 16th international conference, CRiSIS 2021, virtual event, Ames, USA, November 12–13, 2021, revised selected papers - Luo, Bo; Mosbah, Mohamed; Cuppens, Frédéric; Ben Othmane, Lotfi; Cuppens, Nora; Kallel, Slim (Springer, 2022)