About me

I founded A3 Security Consulting, the first security consulting company in South Korea, in 1999. I was also a member and the last leader of KUS (KAIST UNIX Society), the legendary hacking group in South Korea (KUS is regarded as a former group of KAIST GoN).

I am a professor at the School of Cybersecurity, Korea University. (Very proudly, I am listed in the Stanford/Elsevier's world top 2% scientist, 2024). At Korea University, I'm a director of HCRL, a well-known automotive security dataset contributor. My research is focused on solving many security problems using AI and Machine Learning in automotive security and online gaming areas. Especially, the dataset for machine learning based IDPS for in-vehicle networks is well noticed to the automotive security researchers. 

As a serial entrepreneur, I am a co-founder of AI Spera, which provides Criminal IP service (cyber threat intelligence search engine) globally. Before joining Korea University, I was a technical director (TD) and the head of the information security department of NCSOFT (2004-2010).

Here are several keywords that describe me well at each age. 

Hacking and Countermeasure Research Lab. (HCRL)

It is my privilege to advise talented master’s and PhD students, who are now working as CISOs or CEOs in promising companies, or as professors at reputed universities.

and last but not least...

My academic sibling, Prof. Jiyoung Woo, was a research professor at the School of Cybersecurity at Korea University. During that time, she was a co-advisor for many students at HCRL.

Bio & CV 

CTI service 

Bibliography 

Recent Talks (video clips available at Youtube) 

Links