Official URL
Total events: 16
Avg weight: 48.71
The UCSB International Capture The Flag (also known as the iCTF) is a distributed, wide-area security exercise, whose goal is to test the security skills of the participants....
Official URL
Total events: 13
Avg weight: 32.50
RuCTF is annual open all-Russian intercollegiate competition and conference on information security.
Official URL
Total events: 12
Avg weight: 22.21
Trend Micro CTF - Raimund Genes Cup is a capture the flag competition hosted by Trend Micro, a global leader in cybersecurity with a mission to make the world safe for exchan...
Official URL
Total events: 11
Avg weight: 81.19
Online qualifier for the Vegas finals.
Binjitsu by ddtek (... — 2012)
Legitimate Business Syndicate (2013 — 2017)<...
Official URL
Total events: 11
Avg weight: 74.30
International online challenge in information security. Good choice to start playing A/D, because we're providing vulnbox in our cloud, so you don't need to be an administrat...
Official URL
Total events: 11
Avg weight: 38.24
CSAW CTF is a entry-level CTF, designed for undergraduate students who are trying to break into security. Challenges are specifically designed to point students in directions...
Official URL
Total events: 11
Avg weight: 0.00
Cyber Talents is a platform that ranks cyber security talents according to their real hands
on skills in different cyber security categories by running capture the flag ...
Official URL
Total events: 10
Avg weight: 81.23
Binjitsu by ddtek (... — 2012)
Legitimate Business Syndicate (2013 — 2017)
Order o...
Official URL
Total events: 10
Avg weight: 23.78
VolgaCTF is an international inter-university cybersecurity competition organised by a group of IT enthusiasts based in Samara, Russia.
The competition consists of 2 ...
Official URL
Total events: 10
Avg weight: 27.10
CTF Securinets Quals 2015 is an on-line jeopardy style CTF organized by Tunisian student.
You can find more details on our website: www.ctfsecurinets.com
or www.sec...
Official URL
Total events: 10
Avg weight: 25.00
CyberTalents is a platform that ranks cyber security professionals across the globe by running CTF competitions
Official URL
Total events: 9
Avg weight: 29.17
What: Jeopardy style CTF hacking competition
When: April 12th & 13th 2018
Where: On site at HITB2018AMS @ NH Krasnapolsky
Who: Max of 24 teams with up to 3 pla...
Official URL
Total events: 9
Avg weight: 30.38
NorthSec is the world's biggest on-site CTF, opposes 75 teams of 8 people trying to obtain the most points by capturing flags during an intense 48 hour-long competition (Fri-...
Official URL
Total events: 9
Avg weight: 59.37
Annual Capture The Flag hosted by the Google Security Team.
Official URL
Total events: 8
Avg weight: 21.83
VolgaCTF is an international inter-university cybersecurity competition organised by a group of IT enthusiasts based in Samara, Russia.
The competition consists of 2 ...
Official URL
Total events: 8
Avg weight: 18.48
WhiteHat Grand Prix, a Capture The Flag competition, is held annually by WhiteHatVN.com, leading cyber security forum in Vietnam.
Official URL
Total events: 8
Avg weight: 36.53
WHY Midnight Sun CTF The Midnight Sun CTF started as a common interest between Networked Systems Security (NSS) group at KTH, CTF Team HackingForSoju and Saab to promote the ...
Official URL
Total events: 7
Avg weight: 46.59
InCTF is brought to you by CTF team bi0s of Amrita University, Amritapuri.
Official URL
Total events: 7
Avg weight: 24.25
GreHack CTF is onsite jeopardy style CTF held each year at the occasion of GreHack Conference.
Official URL
Total events: 7
Avg weight: 34.97
BackdoorCTF is an online jeopardy style event.
Discord invite for the competition is https://discord.gg/skN4Mj, Communication at other times can be made through https...
Official URL
Total events: 6
Avg weight: 46.00
All tasks are available here: http://ctfarchive.phdays.com/
Official URL
Total events: 6
Avg weight: 18.46
HackCon is a jeopardy style competition that includes challenges in the domain of Reverse Engineering, Web Exploitation, Clever Scripting, Automation and general "hacks".
...
Official URL
Total events: 6
Avg weight: 41.37
Geared primarily towards high school students but with a very wide range of challenge difficulty.
Official URL
Total events: 6
Avg weight: 46.50
FAUST CTF is an online attack-defense CTF organized by FAUST, the CTF team of Friedrich-Alexander University Erlangen-Nürnberg
Official URL
Total events: 6
Avg weight: 57.83
A yearly CTF organized by hxp (also known as H4x0rPsch0rr).
See CTF archive: https://ctf.hxp.io/
Official URL
Total events: 6
Avg weight: 56.42
Brazilian Thematic CTF, organized by Epic Leet Team members.
Most original and multidisciplinary competition in the world!
Official URL
Total events: 5
Avg weight: 0.00
Highly recommended as anyone's first CTF, picoCTF is a traditional challenge-based competition with a two-week annual competition period that rolls into a year-round accessib...
Official URL
Total events: 5
Avg weight: 19.67
DEF CON OpenCTF! Now with a feline touch.
2019-? Neg9 https://ctftime.org/team/303
2014?-2018 v& https://ctftime.org/team/359
Official URL
Total events: 5
Avg weight: 19.84
CTF hosted by the Special interest Group for Computer
Security (SIGPwny) at the University of Illinois in Urbana-Champaign.
Official URL
Total events: 5
Avg weight: 23.32
In support of STEM outreach, MITRE hosts an annual Capture the Flag (CTF) competition. High school and undergraduate college students have the opportunity to compete in cyber...
Official URL
Total events: 5
Avg weight: 24.02
The first ever CTF run entirely by high schoolers!
Thanks to our sponsors Trail of Bits and Google Cloud!
Official URL
Total events: 5
Avg weight: 20.56
Codefest presents Capture the Flag, inviting all hackers to show off their skills on a global platform. It provides students with an opportunity to tackle computer security p...
Official URL
Total events: 5
Avg weight: 28.89
The CSR will be back in 2021.
Again we'll have fun tasks and awesome prices.
Details will follow.
Official URL
Total events: 5
Avg weight: 0.00
WhiteHat Challenge is a CTF contest held periodically by WhietHat.vn for beginners in learning or researching cybersecurity as system admins, students in technical schools, e...
Official URL
Total events: 5
Avg weight: 35.73
The Real World CTF 2018, which is in jeopardy style, has an
on-line qualification round followed by an on-site, hands-on
final round in China where all challenges a...
Official URL
Total events: 5
Avg weight: 24.24
X-MAS CTF is the competition organized by HTsP with the purpose of learning and having fun while solving jeopardy-style challenges.
We welcome both beginners and expe...
Official URL
Total events: 5
Avg weight: 0.00
Cyber Talents is a platform that ranks cyber security talents according to their real hands
on skills in different cyber security categories by running capture the flag ...
Official URL
Total events: 4
Avg weight: 46.15
All tasks are available here: http://ctfarchive.phdays.com/
Official URL
Total events: 4
Avg weight: 12.50
Hackfest is a 2 day conference from 8am to 18pm and a 2 hacking games nights from 19pm to 3am, in Quebec, Canada. See games descriptions here
http://www.hackfest.ca/en/...
Official URL
Total events: 4
Avg weight: 28.33
BCTF 2014 is a national contest in China.
From the year 2015, BCTF will be opened to all participants around the world.
Official URL
Total events: 4
Avg weight: 25.00
School CTF is a CTF competitions organized by SiBears team annually since 2010. This is a task-based (jeopardy style) CTF that only lasts for 5 hours, so we meet the constrai...
Official URL
Total events: 4
Avg weight: 20.19
WhiteHat Contest, a Capture The Flag contest, is held periodically by WhiteHat.vn, leading cyber security forum in Vietnam. WhiteHat Contest 11th will be the first Contest to...
Official URL
Total events: 4
Avg weight: 17.72
Who
The CTF is run by the Hamburg local chapter of the Chaos Computer Club during the Hackover event.
IRC
#hackover-ctf on irc.hackint.org:6697 (TLS only!)....
Official URL
Total events: 4
Avg weight: 5.00
On-site CTF for beginners, hosted by schools and universities around Russia and other CIS countries.
Official URL
Total events: 4
Avg weight: 39.36
Security Fest is an annual IT-security conference in Gothenburg, Sweden.
We're happy to have the great guys and gals at SecureLink as our premium sponsor. Awesome!
Official URL
Total events: 4
Avg weight: 12.37
A Middle School focused CTF event.
Everyone is welcome to come join in the fun, but Middle School / Jr. High students will be scored separately for prizes.
Go to o...
Official URL
Total events: 4
Avg weight: 23.31
In modern times the Internet is the vital of our society, which inevitably brings about cyber crimes, increasing in number and quantity. In late years the importance of infor...
Official URL
Total events: 4
Avg weight: 28.86
Annual CTF organized by Square. Puzzles range from easy (welcome new comers!) to hard.
Official URL
Total events: 4
Avg weight: 28.92
On-site prequalified All-Russian students and schoolchildren CTF organized by HSE CTF team. VK: vk.com/hsectf TG: t.me/hsectf
Official URL
Total events: 4
Avg weight: 21.88
Hola hackers! Team NullKrypt3rs from IIITA is excited to announce b00t2root '20. A jeopardy style team CTF for the awesome infosec community .
Get ready for some excitin...
Official URL
Total events: 4
Avg weight: 28.95
WPICTF, hosted by Worcester Polytechnic Institute Cyber Security Club.
Official URL
Total events: 4
Avg weight: 24.47
This is the CTF for the BSidesSF conference. Challenges available online or in-person. Most challenges will be introductory to medium difficulty. Prizes sponsored by Facebook...
Official URL
Total events: 4
Avg weight: 27.47
CyBRICS is a cross-university effort to bring students in BRICS countries into practical computer security through CTFs
Official URL
Total events: 4
Avg weight: 30.68
Hi CTFers,
ALLES is looking forward to host their second CTF which will be held during the first weekend of September 2020. This Jeopardy style CTF is open to everyon...
Official URL
Total events: 4
Avg weight: 28.31
m0leCon CTF is a local jeopardy-style CTF that takes place during the m0leCon conference at the Polytechnic University of Turin. In 2021 there will be an online teaser CTF on...
Official URL
Total events: 4
Avg weight: 25.00
The US Air Force, along with the Defense Digital Service, is challenging hackers from around the world to focus their skills and creativity to help achieve more secure operat...
Official URL
Total events: 4
Avg weight: 25.00
What’s Hackfest CTF this year?
3 CTFs at various levels, happening simultaneously
400+ players
About 30 varied tracks of hacking for fun and learning
Uniq...
Official URL
Total events: 4
Avg weight: 24.67
Student CTF is a novice-level Capture The Flag organized by SPbCTF and supported by St. Petersburg Committee for Science and Higher Education.
Free-to-play track is ...
Official URL
Total events: 3
Avg weight: 53.33
DEPRECATED :)
Qualifying event for RuCTF is RuCTFE now
Official URL
Total events: 3
Avg weight: 0.00
- About
Power of XX is a hacking contest CTF for WOMEN Only. It is held as an event at hacking & security conference POC (http://powerofcommunity.net) since 2011. It'...
Official URL
Total events: 3
Avg weight: 31.10
PoliCTF is an online jeopardy-style capture-the-flag competition, open to participants from all over the world.
Official URL
Total events: 3
Avg weight: 26.60
Signup and play at: http://ctf.420blaze.in
Chat at:
#hackerswhoblaze on freenode or https://blazeit.stamplayapp.com/
Video stream: http://420blaze.tv/
Official URL
Total events: 3
Avg weight: 0.00
PACTF is a global cybersecurity competition for high-school students. See https://en.wikipedia.org/wiki/PACTF.
Official URL
Total events: 3
Avg weight: 0.00
The Toulouse Hacking Convention is a french cybersecurity event, that brings together more than 350 participants each year, from various backgrounds : students, professionals...
Official URL
Total events: 3
Avg weight: 27.45
MeePwn CTF is an online competition designed for everyone who interested in cybersecurity. It is organized by MeePwn Team, a Team of security researchers and CTF players from...
Official URL
Total events: 3
Avg weight: 31.98
SEC-T is non-profit annual IT security conference held in Stockholm, Sweden. This time we celebrate 10 years. We celebrate this with a retro-CTF. The date is Wednesday 13/9 1...
Official URL
Total events: 3
Avg weight: 19.81
Kaspersky Industrial CTF Finals will be held at SAS conference (https://sas.kaspersky.com) in Singapore 8-9 April, 2019. Teams qualified to the finals based on quals:
1....
Official URL
Total events: 3
Avg weight: 25.00
Ph0wn is a jeopardy style CTF dedicated to smart devices (IoT, embedded systems, smart phones…). Example: challenges on connected weather station, IP webcams, smart phones et...
Official URL
Total events: 3
Avg weight: 0.00
CTF Russian Cup is an annual wide CTF tournament between the winners of russian regional CTF-competitions.
Official URL
Total events: 3
Avg weight: 21.36
Be the Devil in a quest of questions. Ride in the nightmares of all programmers, and steal the points from right under their buggy noses. The CTF for all the evil geniuses ou...
Official URL
Total events: 3
Avg weight: 31.16
Online, jeopardy-style CTF run by the Information & Systems Security Society at the University of Texas at Austin. Free to play, with prizes offered to University teams. Open...
Official URL
Total events: 3
Avg weight: 36.26
A Capture the Flag Competition held by Byte Bandits, IIT Indore’s academic CTF team.
Official URL
Total events: 3
Avg weight: 18.33
This year, HITB-XCTF GSEC Capture the Flag contest will again be co-organized by HITB and XCTF League from China! An Attack & Defense Style CTF competition is planned for the...
Official URL
Total events: 3
Avg weight: 24.61
TG:HACK is a beginner friendly jeopardy style CTF. It is both onsite and online, as well as a wargame. Our focus is making guiding tasks for beginners, and challenging tasks ...
Official URL
Total events: 3
Avg weight: 29.28
TSG is the official computer society of The University of Tokyo, and also the name of the CTF team organized by its members.
Acquiring chance of organizing two domestic...
Official URL
Total events: 3
Avg weight: 26.01
CTF Name: b01lers CTF
Event Logo: Attached
Start Time: 00:00 UTC March 14
End Time: 00:00 UTC March 16
Official Site URL: ctf.b01lers.com
Event Forma...
Official URL
Total events: 3
Avg weight: 31.00
This year, we'll hold Balsn CTF 2020 with high-quality and creative challenges!
We cordially invite your team to join this party!
Organizers: Balsn (https://bals...
Official URL
Total events: 3
Avg weight: 30.03
Crypto CTF is an online competition for hackers to test, evaluate, and expand their cryptography exploiting skills. In this CTF we will provide various crypto challenges rega...
Official URL
Total events: 3
Avg weight: 0.00
peaCTF, Phillips Exeter Academy’s Capture the Flag, is a free online computer security competition for middle school and high school students. Teams of 1-5 competitors decryp...
Official URL
Total events: 3
Avg weight: 24.64
Supported by XCTF.
One of the XCTF series.
Champion will be invited to the XCTF Finals.
Official URL
Total events: 3
Avg weight: 25.00
Supported by XCTF.
One of the XCTF series.
Champion will be invited to the XCTF Finals.
Official URL
Total events: 3
Avg weight: 18.48
Event description:
Affinity CTF contest is a side project for conference Affinity Akamai Tech Talks conducted in Krakow Poland and organized by Akamai. It consists of a ...
Official URL
Total events: 3
Avg weight: 30.32
The CTF with a disturbing lack of taste, combining binary-heavy challenges with questionable memes and bad puns!
Official URL
Total events: 3
Avg weight: 29.66
HackPack CTF is a security competition that is part of two security courses at NCSU: CSC-405 Computer Security and CSC-591 Systems Attacks and Defenses. The target audience i...
Official URL
Total events: 3
Avg weight: 27.78
Ugra CTF is an open academic information security competition for beginners.
This CTF is organized by [team Team] in a joint effort with Ugra Research Institute of In...
Official URL
Total events: 2
Avg weight: 24.06
A 48 hour Jeopardy style CTF hosted every US presidential election.
Official URL
Total events: 2
Avg weight: 20.72
Hack Dat Kiwi (Kiwi CTF)
Hack Dat Kiwi is a new CTF franchise designed by security researchers and hackers with the aim of creating quality challenges that the partic...
Official URL
Total events: 2
Avg weight: 25.00
Moroccan Cyber Security Camp (MCSC) is an annual event full of various activities like conferences and the workshops guided by professional people and experts in the cuber se...
Official URL
Total events: 2
Avg weight: 0.00
Moscow CTF School 2020 is a jeopardy-style school CTF for Russian school teams, but it will also be available student teams. Student teams will have separate scoreboard and n...
Official URL
Total events: 2
Avg weight: 24.00
The 318br, DESEC (sponsor), and Sucuri Capture The Flag (also known as the 3DSCTF) is the first edition of a brazilian competition which goal is to test the hacker skills of ...
Official URL
Total events: 2
Avg weight: 19.70
Xiomara CTF is the second edition of the Annual CTF conducted as part of Anokha 2017, the annual technical fest of Amrita School of Engineering, Coimbatore. With challenges f...
Official URL
Total events: 2
Avg weight: 0.00
NSK CTF is a challenge in information security among russian universities and schools. Located in Novosibirsk
Official URL
Total events: 2
Avg weight: 24.59
The official SHA2017 CTF SHA2017 is a non profit outdoor Hacker camp taking place in The Netherlands in 2017 on August 4th to 8th. It is the successor of a string of similar ...
Official URL
Total events: 2
Avg weight: 0.00
Shellter Hacking Express (SHX) is quick CTF, with only 3 challeges and 4 hours duration and open and free for everyone. It happens every first Sunday of a month.
Official URL
Total events: 2
Avg weight: 31.00
The HCTF has been hosted by Vidar-Team for ten years. In the last year, our 10th HCTF, we've gained a weight of 37.00. And in this year, we decided to co-host with L-Team and...
Official URL
Total events: 2
Avg weight: 23.40
FarEastCTF - this is the first in the Far East interregional open team competition in the field of information security (CTF format Jeopardy) for students and schoolkids. Org...
Official URL
Total events: 2
Avg weight: 30.32
AceBear Security Contest is a CTF competition hosted by AceBear Team. Our CTF competition's aim is to create a playground for all people who have passion in InfoSec.
Official URL
Total events: 2
Avg weight: 25.18
SwampCTF is a student-run competition and hosted by the University of Florida Student InfoSec Team (UFSIT). Join us online for jeopardy-style fun with challenges in Pwn, Reve...
Official URL
Total events: 2
Avg weight: 25.00
Timisoara CTF is an international jeopardy-style cybersecurity competition, dedicated to high-school students, community-organized in Timisoara, Romania, under Banat IT Assoc...
Official URL
Total events: 2
Avg weight: 13.00
WCTF is organized by 360 Vulcan Team and exclusively sponsored by Qihoo 360.
Official URL
Total events: 2
Avg weight: 25.00
ICON 2018 is a two-days event around cyber security and artificial intelligence. A Capture The Flag competition will take place on September 14 in Geneva, in which 8 teams wi...
Official URL
Total events: 2
Avg weight: 28.48
Ho Ho Ho, it's that time of year where many people count down the days to Christmas.
Traditionally, an advent calendar is used which yields one piece of chocolate ev...
Official URL
Total events: 2
Avg weight: 27.43
The FireShell CTF is a Brazilian event in jeopardy style. The proposal is to test participants' hacking skills in a challenging yet fun environment.
Official URL
Total events: 2
Avg weight: 27.58
The moment you've all been waiting for is finally here: the #19^W #25 team on ctftime in 2017^W 2018 is organizing its own second CTF.
▀█▀ █░█ █▀▀ █▀█ █▀▀ ▀ █░░ █░░ ...
Official URL
Total events: 2
Avg weight: 0.00
JISCTF is the first Capture The Flag competition in Jordan, which launched in 2017. JISCTF is held twice a year with the participation of dozens of teams from both Universiti...
