| 10.21 | Site Open - Admin : (Reset & UNLIMIT) |
| 10.21 | New Prob! - [Prob1 ~ Prob20] |
| 10.21 | Facebook sharing feature Open! |
| 10.22 | New Web Prob21[300] |
| 10.23 | New Forensic Prob22[250] |
| 10.27 | New Trivia Prob23[200] |
| 11.03 | Naver search engine XCZ.KR were registered. |
| 11.04 | New Forensic Prob24[200] |
| 11.04 | New Trivia Prob25[250] |
| 11.18 | New Crypto Prob26[150] | 11.19 | New Forensic Prob27[150] |
| 03.19 | New Network Prob28[150] - Reset |
| 04.17 | New Trivia Prob29[100] - UNLIMIT |
| 06.30 | New Reversing Prob30[100] - Thanks To [win32virus] |
| 10.02 | New Reversing Prob31[600] - Thanks To [setuid0] |
| 10.03 | New Web Prob32[100] - Reset |
| 10.21 | New Web Prob33[300] - Reset |
| 10.21 | New Reversing Prob34[200] - Reset |
| 10.21 | New Forensic Prob35[300] - UNLIMIT |
| 10.21 | New Forensic Prob36[100] - UNLIMIT |