Melih Tas received B.Sc., M.Sc., and Ph.D. degrees in Computer Science & Engineering. He is working as Principal Penetration Tester in a private bank since 2015 in Istanbul, Turkey. He worked as multiple times award-winning entrepreneur and security expert in a private cybersecurity R&D company between 2010 and 2015 where he worked on funded projects. Previous to them, he also worked in a global troubleshooting center where he found the root causes of telecommunication security incidents and frauds and designed measures to prevent them from happening again. He wrote the National VoIP/UC Security Standard Draft by cooperating with Turkish Standards Institute. He is the author of open-source projects Mr.SIP: SIP-Based Audit and Attack Tool and SIP-DD: SIP-Based DDoS Defense Tool. He holds an OSCP certificate. He is an active speaker in hacker conferences including Black Hat Arsenal, Offzone and Nopcon. He likes to do bug bounty hunting in his spare time. His research interests include the design and analysis of both offensive and defensive security mechanisms in the fields of VoIP Security, Network Security, and Web/Mobile Application Security. @artinscience