New Approaches for Security, Privacy and Trust in Complex Environments Proceedings of the IFIP TC-11 22nd International Information Security Conference (SEC 2007), 14–16 May 2007, Sandton, South Africa - Venter, Hein; Eloff, Mariki; Labuschagne, Les; Eloff, Jan; Solms, Rossouw von (Springer US, 2007)