Fri, 30 Jan. 2026, 00:00 UTC — Mon, 02 Feb. 2026, 23:59 UTC 
On-line
A Hack for a Change event.
Format: Jeopardy 
Official URL: http://www.hackforachange.org/
This event's future weight is subject of public voting!
Event organizers
Welcome to the UN SDG CTF. This month’s theme is UN Sustainable Development Goal 15: Life on Land.
The challenges this hand are inspired by wildlife conservation.
This CTF is designed to be accessible while still offering depth for experienced players. If you want a competition that feels meaningful, educational, and fun to solve, you’re in the right place. Join in and test your skills while exploring how security connects to the world beyond the screen.
The only type of challenge being tested in this CTF is web.
178 teams total
| Place | Team | CTF points | Rating points | |
|---|---|---|---|---|
| 1 | krauq | 1200.000 | 25.200 | |
| 2 | Urako | 1200.000 | 18.900 | |
| 3 | UofTCTF | 1200.000 | 16.800 | |
| 4 | Oops! Dangling Pointer | 1200.000 | 15.750 | |
| 5 | Butt0nsh4kers | 1200.000 | 15.120 | |
| 6 | hurja | 1200.000 | 14.700 | |
| 7 | hunt3r_b0un1y | 1200.000 | 14.400 | |
| 8 | dustbusters | 1200.000 | 14.175 | |
| 9 | Oinodecam | 1200.000 | 14.000 | |
| 10 | CYBERDUNE CLUB | 1200.000 | 13.860 | |
| 11 | Pikaa3 | 1200.000 | 13.745 | |
| 12 | LappungCTF{} | 1200.000 | 13.650 | |
| 13 | 0bscuri7y | 1200.000 | 13.569 | |
| 14 | 127.0.0.1 | 1200.000 | 13.500 | |
| 15 | Nattt | 1200.000 | 13.440 | |
| 16 | Minus-Base | 1200.000 | 13.388 | |
| 17 | AgniVigilX | 1200.000 | 13.341 | |
| 18 | UiACTF | 1200.000 | 13.300 | |
| 19 | WhiteHat | 1200.000 | 13.263 | |
| 20 | Team Molla | 1200.000 | 13.230 | |
| 21 | D0texe | 1200.000 | 13.200 | |
| 22 | Not So Serious | 1200.000 | 13.173 | |
| 23 | training | 1200.000 | 13.148 | |
| 24 | UletayuVDubai | 1200.000 | 13.125 | |
| 25 | Tol Sirion | 1200.000 | 13.104 | |
| 26 | Sp4rkl3 | 1200.000 | 13.085 | |
| 27 | 971Sec | 1200.000 | 13.067 | |
| 28 | 0xN!m∆🦅 | 1200.000 | 13.050 | |
| 29 | ThomasNotTom | 1200.000 | 13.034 | |
| 30 | NetCrawlers | 1200.000 | 13.020 | |
| 31 | shads | 1200.000 | 13.006 | |
| 32 | u53LL | 1200.000 | 12.994 | |
| 33 | MindCrafters | 1200.000 | 12.982 | |
| 34 | strul team | 1200.000 | 12.971 | |
| 35 | TheYSEC | 1200.000 | 12.960 | |
| 36 | Nol3ptr | 1200.000 | 12.950 | |
| 37 | You Only Livers Once | 1200.000 | 12.941 | |
| 38 | bison001 | 1200.000 | 12.932 | |
| 39 | KALKAN | 1200.000 | 12.923 | |
| 40 | Legion404 | 1200.000 | 12.915 | |
| 41 | D0ub13O00O | 1200.000 | 12.907 | |
| 42 | SLSH | 1200.000 | 12.900 | |
| 43 | Ashen Cypher | 1200.000 | 12.893 | |
| 44 | kish-mat | 1200.000 | 12.886 | |
| 45 | ObsidianNull | 1200.000 | 12.880 | |
| 46 | KitaCuba | 1200.000 | 12.874 | |
| 47 | credo_team | 1200.000 | 12.868 | |
| 48 | LCF | 1200.000 | 12.863 | |
| 49 | latihan lks bang | 1200.000 | 12.857 | |
| 50 | CTF | 1200.000 | 12.852 | |
| 51 | HarryStyles | 1200.000 | 12.847 | |
| 52 | Whatever | 1200.000 | 12.842 | |
| 53 | Team Designo | 1200.000 | 12.838 | |
| 54 | cyber673 | 1200.000 | 12.833 | |
| 55 | R35t_1n_p3ac3 | 1200.000 | 12.829 | |
| 56 | raj | 1200.000 | 12.825 | |
| 57 | WillHackForBeer | 1200.000 | 12.821 | |
| 58 | schenk | 1200.000 | 12.817 | |
| 59 | VLUTEsec | 1200.000 | 12.814 | |
| 60 | th3_0B$3$$3D | 1200.000 | 12.810 | |
| 61 | CyberSec | 1200.000 | 12.807 | |
| 62 | portabuser | 1200.000 | 12.803 | |
| 63 | Chipmonks | 1200.000 | 12.800 | |
| 64 | NET | 1200.000 | 12.797 | |
| 65 | noname | 1200.000 | 12.794 | |
| 66 | MOJO_JOJO | 1100.000 | 11.741 | |
| 67 | freaky_falcon | 1100.000 | 11.738 | |
| 68 | rjcyplt4fun | 1000.000 | 10.685 | |
| 69 | 0xram | 1000.000 | 10.683 | |
| 70 | 123 | 1000.000 | 10.680 | |
| 71 | Kirasec | 1000.000 | 10.677 | |
| 72 | powder | 900.000 | 9.625 | |
| 73 | H4ckf0rce | 900.000 | 9.623 | |
| 74 | banana_potassium | 900.000 | 9.620 | |
| 75 | AtaybShiba | 800.000 | 8.568 | |
| 76 | cactus | 800.000 | 8.566 | |
| 77 | Some_Team | 800.000 | 8.564 | |
| 78 | who is rem | 800.000 | 8.562 | |
| 79 | wUMrm | 700.000 | 7.509 | |
| 80 | CHARXIU | 700.000 | 7.508 | |
| 81 | CaffeineAddicts | 700.000 | 7.506 | |
| 82 | CaptchaTheFlag | 700.000 | 7.504 | |
| 83 | Pwn13ss | 700.000 | 7.502 | |
| 84 | 3XU6 | 700.000 | 7.500 | |
| 85 | EliteCollapseZ | 600.000 | 6.448 | |
| 86 | PWN_0x | 600.000 | 6.447 | |
| 87 | T4Root | 600.000 | 6.445 | |
| 88 | Mabdo | 600.000 | 6.443 | |
| 89 | ego | 600.000 | 6.442 | |
| 90 | Admin | 600.000 | 6.440 | |
| 91 | skyfzz | 600.000 | 6.438 | |
| 92 | Lonely | 600.000 | 6.437 | |
| 93 | Italica | 500.000 | 5.385 | |
| 94 | Team_ | 500.000 | 5.384 | |
| 95 | 野猪亨利 | 500.000 | 5.383 | |
| 96 | The Colossals | 500.000 | 5.381 | |
| 97 | Sn4k3_wr3ck3r | 500.000 | 5.380 | |
| 98 | For3st | 500.000 | 5.379 | |
| 99 | Yzolo | 500.000 | 5.377 | |
| 100 | ThatSoloBrit | 500.000 | 5.376 | |
| 101 | hplaptop | 500.000 | 5.375 | |
| 102 | palgal2026 | 500.000 | 5.374 | |
| 103 | Peak_team | 500.000 | 5.372 | |
| 104 | D1G1T4L-M4YH3M | 400.000 | 4.321 | |
| 105 | zyzyzyzy | 400.000 | 4.320 | |
| 106 | Hash Buster | 400.000 | 4.319 | |
| 107 | teamZebin | 400.000 | 4.318 | |
| 108 | Nepal U-20 | 400.000 | 4.317 | |
| 109 | tr00p | 400.000 | 4.316 | |
| 110 | n3vviyssX | 400.000 | 4.315 | |
| 111 | B33F | 400.000 | 4.314 | |
| 112 | Mx | 400.000 | 4.312 | |
| 113 | james9909 | 400.000 | 4.312 | |
| 114 | KastroZizo | 400.000 | 4.311 | |
| 115 | PurpleMafia | 400.000 | 4.310 | |
| 116 | Șefii Gușei | 400.000 | 4.309 | |
| 117 | CPERKKK | 400.000 | 4.308 | |
| 118 | Crazy Bandits | 400.000 | 4.307 | |
| 119 | asdasdasd | 300.000 | 3.256 | |
| 120 | justme | 300.000 | 3.255 | |
| 121 | G0f4rFl4g | 300.000 | 3.254 | |
| 122 | mkyware | 300.000 | 3.253 | |
| 123 | i.am.bob | 300.000 | 3.252 | |
| 124 | IgelsCTF | 300.000 | 3.252 | |
| 125 | The Real AMG | 300.000 | 3.251 | |
| 126 | Admins | 300.000 | 3.250 | |
| 127 | kuzu kaykayi | 300.000 | 3.249 | |
| 128 | The R3b0rn $h4d0w$ | 300.000 | 3.248 | |
| 129 | Eggs | 300.000 | 3.248 | |
| 130 | Error 404 | 300.000 | 3.247 | |
| 131 | SaudiiTeam | 300.000 | 3.246 | |
| 132 | saudi_cyber | 300.000 | 3.245 | |
| 134 | bbbbbbbbbbb | 300.000 | 3.244 | |
| 135 | paradox | 200.000 | 2.193 | |
| 136 | Team Overfl0w | 200.000 | 2.193 | |
| 137 | Cobra | 200.000 | 2.192 | |
| 138 | Fluorine | 200.000 | 2.191 | |
| 139 | CTF_Phoenix | 200.000 | 2.191 | |
| 140 | cyberMEOW | 200.000 | 2.190 | |
| 141 | ROPgods | 200.000 | 2.189 | |
| 142 | r3b0rn | 200.000 | 2.189 | |
| 143 | choc | 200.000 | 2.188 | |
| 144 | zer0toh3ro | 200.000 | 2.188 | |
| 145 | SENTINALSPRIME | 200.000 | 2.187 | |
| 146 | NASA Rejects | 200.000 | 2.186 | |
| 147 | TryingaComp | 100.000 | 1.136 | |
| 148 | M1 | 100.000 | 1.135 | |
| 149 | Team Darkstar | 100.000 | 1.135 | |
| 150 | M&G | 100.000 | 1.134 | |
| 151 | Cyber Hunters | 100.000 | 1.133 | |
| 152 | BITSkrieg | 100.000 | 1.133 | |
| 153 | __bits_united | 100.000 | 1.132 | |
| 154 | NightRaven | 100.000 | 1.132 | |
| 155 | tjcsc | 100.000 | 1.131 | |
| 156 | Who cares about you, bro? | 100.000 | 1.131 | |
| 157 | Pablooooo | 100.000 | 1.130 | |
| 158 | pæpæ | 100.000 | 1.130 | |
| 159 | jacques | 100.000 | 1.129 | |
| 160 | Kaappi | 100.000 | 1.129 | |
| 161 | Solo_Run | 100.000 | 1.128 | |
| 162 | solosys | 100.000 | 1.128 | |
| 163 | Chaos | 100.000 | 1.127 | |
| 164 | K4b00tar 2.5 | 100.000 | 1.127 | |
| 165 | WrongWay Geng | 100.000 | 1.126 | |
| 166 | Outlier | 100.000 | 1.126 | |
| 167 | Warda Khan | 100.000 | 1.125 | |
| 168 | johnnyjimjams | 100.000 | 1.125 | |
| 169 | Apeili sthn klwsth | 100.000 | 1.125 | |
| 170 | NOVA | 100.000 | 1.124 | |
| 171 | SadInfinite -Solo | 100.000 | 1.124 | |
| 172 | dem | 100.000 | 1.123 | |
| 173 | MeTired | 100.000 | 1.123 | |
| 174 | 401_πR4tes | 100.000 | 1.122 | |
| 175 | APT-53 | 100.000 | 1.122 | |
| 176 | Gemerald | 100.000 | 1.122 | |
| 177 | fri3nds | 100.000 | 1.121 | |
| 178 | SOLO_PLAYS | 100.000 | 0.560 | |
| 179 | amamgi | 100.000 | 0.560 | |
It is not possible to verify your email using the link provided. SCAN??
Was quite easy tho, but ain't gonna be ranked top 3 due to the difference in time zones.
cant create a team since its started...
never host a CTF again
wth do you mean you cant create a team if it started. heard of time zone difference?
Email verification email showed up after 30 minutes of signing up.
Clicked link and was just taken to landing page of CTF. No visible errors, but when looking at the URL is shows "...?error=access_denied&error_code=otp_expired&error_description=Email+link+is+invalid+or+has+expired#error=access_denied&error_code=otp_expired&error_description=Email+link+is+invalid+or+has+expired".
Everyone who is having sign in/up issues probably dodged a bullet. If they can't setup a simple onboarding system, what do you think the quality of challenges are?
Does the ctf contains easy tasks, or i'm wrong?
Where do I find the URL to start?
So if I signed up for the event on CTFtime and not on the official website I can't participate?
I managed to verify my email, but you cannot create a team after the CTF started. You cannot even see the challenges after the start
Hi all,
This is the organizer of the contest. Sorry for any inconveniences with the email signup system. There was a crash in the email SMTP system which has now been resolved and there shouldn’t be any issues going forward. Our contest was designed so that you must sign up for the contest before it started on our website where the contest was posted two weeks prior, however based on user feedback future contests will now allow users to sign up mid-contest. Challenge difficulty was intentionally made easier for our first contests, however going forward challenges will be harder. Again, sorry for any inconveniences or confusion and we hope you will join us in February for our next contest!
Only 6 web tasks in 4 days?
You need to fix the scoreboard. The rankings are random and don’t reflect who solved the challenges first.
One of the CTFs where the score didn't change and the position dropped. What is this??? 6 tasks in 4 days? Problem logging in. never again. Crappy ctf.
