The mobile money revolution [documento eletrónico] / International Telecommunication Union
Relatório sobre ameaças de segurança de sites em 2013 [documento eletrónico] / [ed.] Symantec Website Security Solutions
Internet security threat report 2013 [documento eletrónico] / Symantec Corporation
European Internet security strategy [documento eletrónico] / Progress Consulting and The National and Kapodistrian University of Athens
ISO/IEC 27002 [documento eletrónico] : information technology; : security techniques; : code of practice for information security controls