| Challenge | Category | Value | Time |
| 제 친구의 개가 바다에서… | Multimedia | 100 | |
| 저는 플래그를 이 파일에.. | Multimedia | 100 | |
| DefCoN#21 #1 | Network | 1 | |
| DefCoN#21 #2 | Network | 2 | |
| DefCoN#21 #3 | Network | 3 | |
| DefCoN#21 #4 | Network | 4 | |
| DefCoN#21 #5 | Network | 5 | |
| DefCoN#21 #6 | Network | 6 | |
| DefCoN#21 #7 | Network | 7 | |
| DefCoN#21 #8 | Network | 8 | |
| DefCoN#22 #1 | Network | 9 | |
| DefCoN#22 #2 | Network | 10 | |
| DefCoN#22 #4 | Network | 12 | |
| DefCoN#22 #5 | Network | 13 |