Dr Iosif I. Androulidakis has an active presence in the ICT security field having authored more than 80 publications (including 4 books) and having presented more than 100 talks and lectures in international conferences and seminars in 20 countries. His research interests focus on security issues in fixed and mobile telephony systems where he has more than 20 years of experience. Mr Androulidakis holds a BSc in Physics and a PhD and an MSc in Electronics for which he was awarded the Greek State’s Scholarships Foundation outstanding performance prize. He also holds a second PhD in ICT from MPS Jozef Stefan, Slovenia. Fragkiskos – Emmanouil Kioupakis is a researcher regarding the subjects of information systems security, mobile security and malware and security rating methodologies. He has been a network engineer in a number of ISPs and his interests include the subjects of information security, security management, optical networking technologies and broadband access technologies.