Zisis Tsiatsikas was born in Thessaloniki, Greece in 1986.

He earned a Diploma (2011), an MSc (2013) and a Ph.D (2019), in the area of Network Security, under the supervision of Professor Georgios Kambourakis. All from the Department of Information and Communication Systems Engineering of the University of the Aegean, at Samos island, Greece. The title of his Ph.D. thesis was "Detection and Prevention of Denial of Service attacks in SIP and SDP".

He started his professional steps as a junior researcher and a lab teaching assistant in the same department back in 2012. Till 2016, he works for Unify as an R&D Engineer in the NG911 Atos project. Additionally, he participates in the UCC patent office. During this period, he had the chance to cooperate with different engineers, contributing both to the development life cycle and the patent process. He awarded by Unify as the Inventor of the year 2019. The award was earned among 123 inventors, for contributing in 4 first filings, completed in cooperation with 13 different co-authors.