He has been working in areas such as cybersecurity, software development, Unix/Linux and networking for 30 years. He currently leads SK-CERT, the national cyber security incident response team. He works on topics such as low-level programming, penetration testing, malware analysis, CSIRT capability building and troubleshooting. He has co-authored several projects, including a security framework in the Linux OS kernel and a TCP/IP stack in the Z80 assembler.
In his spare time, he teaches courses on binary vulnerabilities and forensics at the Faculty of Computer Science and Information Technology at STU. He has CISSP certification.