Alexandros Zaharis holds a Bachelor (2007) in Computer Engineering and Telecommunications and a Msc .(2010), with honors, in Computer Science, degrees from the Computer Engineering, Telecommunication and Networks Department, University of Thessaly (UTH), Greece. In the previous years (2011-2015) he worked as a Security Officer for GRNET dealing. with Compliance, Development & Maintenance of Security Policies. He has also served as the GRNET-CERT Representative dealing with:. - Cyber Attack Analysis, Corporate Forensics, Malware Analysis.. - Incident Handling/ Incident Response / Penetration Testing.. He currently holds a position as an Officer in Network and Information Security for ENISA, dealing with the Design and Technical Implementation of Cyber Security Exercises. (CYBER EUROPE). His research interests include: Computer Security and Computer Forensics, sensors and Data Hiding. He has also participated on DEFCON 22, presenting exploitation methods on PoS systems inside airports.