| 2004. 02. | Dr. Lee came to the Computer Science and Engineering Department, Korea University. | 
| 2004. 08. | CCS Lab was constructed. | 
| 2005. 09. 23 - 24 | CCS Lab hosted 4th KAIST-POSTECH Science War. | 
| 2006. 07. 28 - 29 | CCS Lab hosted 3rd Joint Workshop between Security Research Labs in Korea and Japan. | 
| 2014. 11. 08 - 09 | CCS Lab celebrated 10th anniversary (More Information). | 
| 2015. 01. 08 - 10 | CCS Lab hosted 8th Joint Workshop between Security Research Labs in Korea and Japan (More Information). | 
| 2015. | CSSA was established for international projects (CSSA Homepage). | 
| 2016. | IoTcube opened in public as automated security analysis platform (IoTcube platform). | 
| 2019. | Graduate school for security major was established (More Information). |