This is the 2nd year that we have organised this contest, followed by the successful experience in last November with 541 students from secondary and tertiary institutions joining.
With the success of last year, this year we enhanced the programme to have an Open group in addition to the student groups. That means this time we allow all Hong Kong residents to join. Our objectives are to arouse the cyber security awareness of the public and to encourage problem solving with teamwork, cyber security skills and creative thinking among students and security practitioners. More information can be found in https://ctf.hkcert.org.
Organisers: HKCERT and HKPC
Co-organisers: AiTLE, BlackB6a, eLC, ISOCHK, PISA, VXRL
Gold Sponsor: Tenable, Inc.
Silver Sponsors: Check Point Software Technologies Ltd, Fortinet, Inc, Kaspersky Lab
A. Secondary School – For all student of secondary school in Hong Kong
- Gold: Samsung Galaxy A42 5G Smartphone
- Silver: Harman Kardon AURA STUDIO 3 Bluetooth Speaker
- Bronze: Ducky One 2 SF (Brown switches) RGB Mechanical Gaming Keyboard
* Each awarded school will receive a trophy
* The school who sent most students will be awarded a “Most Supportive School Award”
B. Tertiary Institution – For all full-time students in Diploma, Higher Diploma, Associate Degree and Bachelor Degree of universities or colleges in Hong Kong
- Gold: Apple Watch Series 7 GPS Aluminum Case with Sport Loop (45 mm)
- Silver: Apple AirPods Pro
- Bronze: SteelSeries Prime Wireless Pro Series Gaming Mice
C. Open Category – For all residents of Hong Kong or holder of valid working or study visa of Hong Kong
- Gold: DJI Mini SE Fly More Combo (S) Drone
- Silver: Sony WH-1000XM4 Wireless Noise Cancelling Headphones
- Bronze: Corsair K70 MK.2 RGB Mechanical Gaming Keyboard (Blue switches)
In additional to the above prizes, all the awarded participants will receive an award certificate and be awarded to join a cyber security training programme “Red/Blue Team Pentest Kungfu Intensive Course” organized by HKPC in January 2022. Other participants will receive an electronic certificate based on the result.
Place | Team | CTF points | Rating points |
| 1 |
The_Duck |
10650.000 | 50.000 |
| 2 |
HKUSTFirebird |
9400.000 | 34.566 |
| 3 |
Super Guesser |
8450.000 | 28.169 |
| 4 |
T0028 - CUHK,PolyU,HKCC |
4900.000 | 17.752 |
| 5 |
AUTOEXEC.BAT |
4350.000 | 15.211 |
| 6 |
UND3r 20 D53 H473r5 4ND r374K3r |
3950.000 | 13.439 |
| 7 |
CLSec |
3800.000 | 12.492 |
| 8 |
T0047 - HKUST |
3300.000 | 10.871 |
| 9 |
O0016 - ePotato |
3300.000 | 10.524 |
| 10 |
O0056 - AVADA KEDAVRA |
2950.000 | 9.425 |
| 11 |
DarkArmy |
2900.000 | 9.080 |
| 12 |
O0083 - c0rrupted flags |
2400.000 | 7.717 |
| 13 |
T0042 - HKUST |
2400.000 | 7.557 |
| 14 |
T0085 - PolyU |
2050.000 | 6.598 |
| 15 |
HackyClub |
2000.000 | 6.362 |
| 16 |
T0025 - IVE(TM) |
2000.000 | 6.257 |
| 17 |
O0072 - Royal Sunflower Tea | Tea to enrich your day |
2000.000 | 6.165 |
| 18 |
T0057 - HKUST |
1850.000 | 5.732 |
| 19 |
T0010 - CityU,PolyU |
1750.000 | 5.424 |
| 20 |
T0087 - CityU |
1750.000 | 5.358 |
| 21 |
O0084 - Never Gonna Let You Dump |
1750.000 | 5.298 |
| 22 |
T0064 - HKUST |
1650.000 | 5.010 |
| 23 |
S0048 - TWGHs Wong Fut Nam College |
1600.000 | 4.843 |
| 24 |
MOCTF |
1500.000 | 4.563 |
| 25 |
T0039 - CUHK |
1500.000 | 4.521 |
| 26 |
O0086 - offsecFansclub |
1500.000 | 4.483 |
| 27 |
O0062 - P2403 |
1450.000 | 4.330 |
| 28 |
O0067 - HC2021 |
1350.000 | 4.062 |
| 29 |
O0055 - Braindump |
1350.000 | 4.031 |
| 30 |
T0090 - HKUST |
1300.000 | 3.885 |
| 31 |
Acceleration |
1250.000 | 3.741 |
| 32 |
T0036 - CUHK |
1250.000 | 3.716 |
| 33 |
T0032 - HKCC,UOWCHK |
1200.000 | 3.574 |
| 34 |
T0037 - HKBU,CityU,HKMU |
1150.000 | 3.435 |
| 35 |
O0079 - NullPointer |
1150.000 | 3.414 |
| 36 |
O0054 - Mama Sung |
1150.000 | 3.394 |
| 37 |
S0043 - CARMEL SECONDARY SCHOOL |
1150.000 | 3.375 |
| 38 |
O0047 - FlowerTea |
1150.000 | 3.357 |
| 39 |
T0033 - HKMU |
1150.000 | 3.341 |
| 40 |
O0043 - The Almighty Dragon |
1100.000 | 3.207 |
| 41 |
O0059 - Fragile❤ |
1050.000 | 3.075 |
| 42 |
S0003 - Kwun Tong Maryknoll College |
1050.000 | 3.060 |
| 43 |
T0030 - HKUST,CityU |
1000.000 | 2.929 |
| 44 |
S0056 - Queens College Old Boys Association Secondary School |
1000.000 | 2.916 |
| 45 |
天枢Dubhe |
950.000 | 2.786 |
| 46 |
T0074 - PolyU |
950.000 | 2.774 |
| 47 |
T0068 - HKMU |
950.000 | 2.762 |
| 48 |
O0008 - RTP |
900.000 | 2.634 |
| 49 |
S0059 - Fanling Kau Yan College |
900.000 | 2.623 |
| 50 |
S0033 - CCC Ming Yin College |
900.000 | 2.613 |
| 51 |
T0086 - PolyU |
900.000 | 2.603 |
| 52 |
O0030 - Will code for food |
850.000 | 2.476 |
| 53 |
S0008 - The Chinese Foundation Secondary School |
850.000 | 2.467 |
| 54 |
S0018 - The Chinese Foundation Secondary School |
850.000 | 2.458 |
| 55 |
O0050 - 7M5_N650C |
800.000 | 2.332 |
| 56 |
T0004 - HKUST,HKU SPACE,CUHK |
800.000 | 2.324 |
| 57 |
O0024 - SquidGamer |
800.000 | 2.317 |
| 58 |
T0095 - CUHK |
750.000 | 2.192 |
| 59 |
O0053 - Si Daan Kau Gei La |
750.000 | 2.184 |
| 60 |
T0059 - HKCC |
750.000 | 2.177 |
| 61 |
S0005 - Shatin Tsung Tsin Secondary School |
750.000 | 2.170 |
| 62 |
O0025 - SatayBeefNoodles |
700.000 | 2.046 |
| 63 |
S0051 - Carmel Alison Lam Foundation Secondary School |
700.000 | 2.040 |
| 64 |
S0061 - Po Leung Kuk Choi Kai Yau School |
700.000 | 2.034 |
| 65 |
O0046 - TeammatesNotFound |
700.000 | 2.028 |
| 66 |
T0018 - HKU |
700.000 | 2.022 |
| 67 |
S0093 - De La Salle Secondary School, N.T. |
700.000 | 2.016 |
| 68 |
S0107 - CHANG PUI CHUNG MEMORIAL SCHOOL |
650.000 | 1.893 |
| 69 |
O0066 - QWErTY |
650.000 | 1.888 |
| 70 |
T0040 - HKCC,HKUST |
650.000 | 1.883 |
| 71 |
O0039 - Buddiesss |
650.000 | 1.878 |
| 72 |
S0057 - SKH Tang Shiu King Secondary School |
600.000 | 1.756 |
| 73 |
S0042 - CARMEL SECONDARY SCHOOL |
600.000 | 1.751 |
| 74 |
S0009 - Tsuen Wan Public Ho Chuen Yiu Memorial College |
600.000 | 1.746 |
| 75 |
O0077 - Kappas Mouth |
550.000 | 1.624 |
| 76 |
T0049 - HKU SPACE |
550.000 | 1.620 |
| 77 |
T0045 - HKU,HKUST,CUHK |
550.000 | 1.616 |
| 78 |
O0075 - wtfIsCTF |
550.000 | 1.612 |
| 79 |
Immaculate Heart of Mary College |
550.000 | 1.608 |
| 80 |
S0038 - Fanling Rhenish Church Secondary School |
550.000 | 1.604 |
| 81 |
S0040 - Fanling Rhenish Church Secondary School |
550.000 | 1.600 |
| 82 |
S0039 - Fanling Rhenish Church Secondary School |
550.000 | 1.596 |
| 83 |
S0031 - Ying Wa College |
550.000 | 1.592 |
| 84 |
T0053 - THEi |
500.000 | 1.471 |
| 85 |
S0062 - CARMEL SECONDARY SCHOOL |
450.000 | 1.350 |
| 86 |
T0035 - CUHK |
450.000 | 1.347 |
| 87 |
T0076 - CUHK |
450.000 | 1.344 |
| 89 |
T0088 - HKMU |
450.000 | 1.337 |
| 90 |
S0041 - CARMEL SECONDARY SCHOOL |
450.000 | 1.334 |
| 91 |
O0063 - Jukerland |
450.000 | 1.331 |
| 92 |
O0033 - HDMI |
450.000 | 1.328 |
| 93 |
S0027 - HKSYCIA Wong Tai Shan Memorial College |
450.000 | 1.325 |
| 94 |
S0088 - Lock Tao Secondary School |
400.000 | 1.205 |
| 95 |
O0085 - Hacker T |
400.000 | 1.202 |
| 96 |
T0038 - HKUST |
400.000 | 1.199 |
| 97 |
T0007 - CUHK |
400.000 | 1.197 |
| 98 |
S0036 - Carmel Pak U Secondary School |
400.000 | 1.194 |
| 99 |
O0034 - TeamMiracle |
400.000 | 1.191 |
| 100 |
O0019 - Team 388 |
400.000 | 1.189 |
| 101 |
T0072 - IVE (CW) |
400.000 | 1.186 |
| 102 |
S0101 - Youth College (Kwai Fong) |
400.000 | 1.184 |
| 103 |
O0074 - CLS |
350.000 | 1.064 |
| 104 |
T0065 - HKUST |
350.000 | 1.062 |
| 105 |
S0106 - Kwok Tak Seng Catholic Secondary School |
350.000 | 1.060 |
| 106 |
T0021 - CUHK |
350.000 | 1.057 |
| 107 |
T0091 - HKU |
350.000 | 1.055 |
| 108 |
S0086 - Man Kwan QualiEd College |
350.000 | 1.053 |
| 109 |
SoloOf3 |
350.000 | 1.051 |
| 110 |
T0062 - HKCC |
350.000 | 1.049 |
| 111 |
T0075 - CUHK |
350.000 | 1.047 |
| 112 |
O0021 - KESR |
350.000 | 1.045 |
| 113 |
O0020 - SKWD |
350.000 | 1.043 |
| 114 |
O0081 - Arbitrary |
300.000 | 0.924 |
| 115 |
O0073 - knownothing |
300.000 | 0.922 |
| 116 |
O0011 - Sam01101 |
300.000 | 0.920 |
| 117 |
S0049 - TWGHs Wong Fut Nam College |
250.000 | 0.801 |
| 118 |
S0112 - LOCK TAO SECONDARY SCHOOL |
250.000 | 0.799 |
| 119 |
O0060 - Nobody |
250.000 | 0.797 |
| 120 |
O0068 - HC2021A |
250.000 | 0.795 |
| 121 |
T0061 - CUHK |
250.000 | 0.793 |
| 122 |
O0009 - faulT |
250.000 | 0.792 |
| 123 |
S0095 - Buddhist Sin Tak College |
250.000 | 0.790 |
| 124 |
S0007 - HKCCCU Logos Academy |
200.000 | 0.671 |
| 125 |
S0019 - St. Francis Xaviers School, Tsuen Wan |
200.000 | 0.669 |
| 126 |
S0030 - St. Francis Xaviers College |
200.000 | 0.668 |
| 127 |
S0111 - Pui Ching Middle School |
200.000 | 0.666 |
| 128 |
O0012 - HWK |
200.000 | 0.665 |
| 129 |
O0018 - TechRebornation |
200.000 | 0.663 |
| 130 |
O0065 - HowDoYouTurnThisOn |
200.000 | 0.662 |
| 131 |
T0092 - HKCC |
200.000 | 0.660 |
| 132 |
T0043 - PolyU,CUHK,SPEED |
200.000 | 0.659 |
| 133 |
T0050 - HKCC |
200.000 | 0.657 |
| 134 |
T0060 - HKU SPACE |
200.000 | 0.656 |
| 135 |
S0016 - Tsuen Wan Public Ho Chuen Yiu Memorial College |
200.000 | 0.655 |
| 136 |
O0044 - O0007 – PAYCheck |
200.000 | 0.653 |
| 137 |
T0073 - HKBU,CUHK |
200.000 | 0.652 |
| 138 |
S0090 - Immaculate Heart of Mary College |
200.000 | 0.651 |
| 139 |
S0082 - SKH Kei Hau Secondary School |
200.000 | 0.649 |
| 140 |
O0002 - MSPeople |
200.000 | 0.648 |
| 141 |
S0087 - Man Kwan QualiEd College |
200.000 | 0.647 |
| 142 |
S0094 - Kings College |
200.000 | 0.646 |
| 143 |
S0004 - St. Pauls Secondary School |
200.000 | 0.644 |
| 144 |
S0010 - The Chinese Foundation Secondary School |
200.000 | 0.643 |
| 145 |
S0023 - Tsuen Wan Public Ho Chuen Yiu Memorial College |
200.000 | 0.642 |
| 146 |
T0056 - THEi |
200.000 | 0.641 |
| 147 |
S0047 - Munsang College (Hong Kong Island) |
200.000 | 0.640 |
| 148 |
O0069 - Chris love Pro Fong |
200.000 | 0.638 |
| 149 |
T0006 - CityU,PolyU |
150.000 | 0.520 |
| 150 |
S0037 - Kings College |
150.000 | 0.519 |
| 151 |
O0071 - Noobtrytryonly |
150.000 | 0.518 |
| 152 |
T0071 - IVE (CW) |
150.000 | 0.517 |
| 153 |
S0147 - De La Salle Secondary School, N.T. |
150.000 | 0.516 |
| 154 |
S0013 - St. Francis Xaviers School, Tsuen Wan |
150.000 | 0.514 |
| 155 |
S0109 - CHANG PUI CHUNG MEMORIAL SCHOOL |
150.000 | 0.513 |
| 156 |
S0089 - Po Leung Kuk Celine Ho Yam Tong College |
150.000 | 0.512 |
| 157 |
T0027 - HKU,CUHK,PolyU |
150.000 | 0.511 |
| 158 |
S0032 - CCC Ming Yin College |
150.000 | 0.510 |
| 159 |
S0052 - St. Francis Xaviers College |
150.000 | 0.509 |
| 160 |
S0034 - CCC Ming Yin College |
150.000 | 0.508 |
| 161 |
T0008 - HKMU |
150.000 | 0.507 |
| 162 |
S0035 - LOCK TAO SECONDARY SCHOOL |
150.000 | 0.506 |
| 163 |
S0028 - HKSYCIA Wong Tai Shan Memorial College |
150.000 | 0.505 |
| 164 |
S0014 - Christian Alliance Cheng Wing Gee College |
150.000 | 0.505 |
| 165 |
T0058 - CUHK |
150.000 | 0.504 |
| 166 |
S0053 - St. Francis Xaviers College |
150.000 | 0.503 |
| 167 |
S0044 - The Chinese Foundation Secondary School |
150.000 | 0.502 |
| 168 |
O0082 - fortune |
150.000 | 0.501 |
| 169 |
S0091 - Immaculate Heart of Mary College |
150.000 | 0.500 |
| 170 |
O0076 - hotelSausalito |
150.000 | 0.499 |
| 171 |
S0065 - SKH Kei Hau Secondary School |
150.000 | 0.498 |
| 172 |
S0074 - Aberdeen Technical School |
150.000 | 0.497 |
| 173 |
O0078 - GLOBAL |
150.000 | 0.497 |
| 174 |
T0054 - THEi |
100.000 | 0.378 |
| 175 |
T0055 - THEi |
100.000 | 0.378 |
| 176 |
T0016 - HKCC |
100.000 | 0.377 |
| 177 |
O0028 - LU, SHAO-CHI |
100.000 | 0.376 |
| 178 |
S0097 - TWGHs Wong Fut Nam College |
100.000 | 0.375 |
| 179 |
S0029 - St. Francis Xaviers College |
100.000 | 0.374 |
| 180 |
T0077 - IVE (CW) |
100.000 | 0.374 |
| 181 |
S0151 - De La Salle Secondary School, N.T. |
100.000 | 0.373 |
| 182 |
T0023 - CUHK |
100.000 | 0.372 |
| 183 |
S0060 - Chinese Foundation Secondary School |
100.000 | 0.371 |
| 184 |
S0024 - The Chinese Foundation Secondary School |
100.000 | 0.371 |
| 185 |
S0102 - Youth College (Kwai Fong) |
100.000 | 0.370 |
| 186 |
S0076 - Lok Sin Tong Leung Chik Wai Memorial School |
100.000 | 0.369 |
| 187 |
S0120 - De La Salle Secondary School, N.T. |
100.000 | 0.368 |
| 188 |
S0080 - SKH Kei Hau Secondary School |
100.000 | 0.368 |
| 189 |
S0098 - TWGHs Wong Fut Nam College |
100.000 | 0.367 |
| 190 |
S0006 - Po Leung Kuk Lo Kit Sing (1983) College |
100.000 | 0.366 |
| 191 |
T0078 - HKU,CUHK |
100.000 | 0.366 |
| 192 |
S0084 - Tung Chung Catholic School |
100.000 | 0.365 |
| 193 |
S0072 - SKH Kei Hau Secondary School |
100.000 | 0.364 |
| 194 |
S0081 - SKH Kei Hau Secondary School |
100.000 | 0.364 |
| 195 |
S0099 - Youth College (Kwai Fong) |
100.000 | 0.363 |
| 196 |
S0100 - Youth College (Kwai Fong) |
100.000 | 0.362 |
| 197 |
O0058 - Try_harder |
100.000 | 0.362 |
| 198 |
O0031 - OneManBand |
50.000 | 0.244 |
| 199 |
S0096 - Immaculate Heart of Mary College |
50.000 | 0.243 |
| 200 |
S0050 - St. Pauls Secondary School |
50.000 | 0.242 |
| 201 |
T0079 - HKCC |
50.000 | 0.242 |
| 202 |
S0011 - St. Francis Xaviers School, Tsuen Wan |
50.000 | 0.241 |
| 203 |
S0022 - Queens College Old Boys Association Secondary School |
50.000 | 0.241 |
| 204 |
T0009 - IVE (CW) |
50.000 | 0.240 |
| 205 |
O0006 - Ring0 |
50.000 | 0.239 |
| 206 |
S0066 - SKH Kei Hau Secondary School |
50.000 | 0.239 |
| 207 |
S0108 - CHANG PUI CHUNG MEMORIAL SCHOOL |
50.000 | 0.238 |
| 208 |
S0153 - United Christian College |
50.000 | 0.238 |
| 209 |
S0085 - HK Juvenile Care Centre Chan Nam Cheong Memorial School |
50.000 | 0.237 |
| 210 |
S0079 - SKH Kei Hau Secondary School |
50.000 | 0.236 |
| 211 |
T0020 - HKCC |
50.000 | 0.236 |
| 212 |
T0083 - HKU SPACE |
50.000 | 0.235 |
| 213 |
S0154 - HKTA Tang Hin Memorial Secondary School |
50.000 | 0.235 |
| 214 |
T0089 - CityU |
50.000 | 0.234 |
| 215 |
T0026 - CUHK |
50.000 | 0.234 |
| 216 |
S0054 - St. Francis Xaviers College |
50.000 | 0.233 |
| 217 |
O0001 - Whatever |
50.000 | 0.233 |
| 218 |
T0005 - CityU |
50.000 | 0.232 |
| 219 |
T0052 - HKUST |
50.000 | 0.232 |
| 220 |
T0029 - CUHK |
50.000 | 0.231 |
| 221 |
O0003 - ethical_Crackers |
50.000 | 0.230 |
| 222 |
S0152 - Kwun Tong Kung Lok Government Secondary School |
50.000 | 0.230 |
| 223 |
S0129 - De La Salle Secondary School, N.T. |
50.000 | 0.229 |
| 224 |
S0075 - GCC&ITKD Lau Pak Lok Secondary School |
50.000 | 0.229 |
| 225 |
S0103 - Youth College (Kwai Fong) |
50.000 | 0.228 |
| 226 |
O0045 - EXFIL |
50.000 | 0.228 |
| 227 |
S0117 - De La Salle Secondary School, N.T. |
50.000 | 0.228 |
| 228 |
S0069 - SKH Kei Hau Secondary School |
50.000 | 0.227 |
| 229 |
O0005 - STommydx |
50.000 | 0.227 |
| 230 |
S0114 - De La Salle Secondary School, N.T. |
50.000 | 0.226 |
| 231 |
S0071 - SKH Kei Hau Secondary School |
50.000 | 0.226 |
| 232 |
O0026 - Zak0 |
50.000 | 0.225 |
| 233 |
S0067 - SKH Kei Hau Secondary School |
50.000 | 0.225 |
| 234 |
S0078 - SKH Kei Hau Secondary School |
50.000 | 0.224 |
| 235 |
S0068 - SKH Kei Hau Secondary School |
50.000 | 0.224 |
| 236 |
S0132 - De La Salle Secondary School, N.T. |
50.000 | 0.223 |
| 237 |
S0083 - SKH Kei Hau Secondary School |
50.000 | 0.111 |
| 238 |
S0055 - St. Francis Xaviers College |
50.000 | 0.111 |