Event
Capture the Flag
All you need to know about CTF9
What is this all about:
CTF (Capture The Flag) – a hands-on competition, where you earn points by solving cybersecurity challenges.
Solving Challenges – find vulnerabilities (like SQL injections, CSRF, IDOR, XXE, XSS etc.) in various web applications to get the ‘flag’.
Getting the flag – after you properly solve the challenge, you receive a ‘flag’ which is a text in format ‘levi9-ctf-1234567890abcdefghijklmnopq’.
Earning points – submit the flag to earn points.
What is in it for me?
You will have tons of fun and adrenalin rush on a Friday afternoon! You can practice and improve your cybersecurity skills. You will bond with colleagues and customers. You can win some fantastic prizes. Join from the office for even more fun!Time/date:
- Preparation session – A one-hour Teams meeting with instructions. Link will be sent only to those who registered for CTF.
- CTF competition day – Friday, October 3rd, 2025. Four hours of hacking for prizes.
Registration and Participation:
Pre-Registration – all participants need to pre-register initially to express interest in participating in CTF. Pre-registration is individual, regardless of whether they have a team or not.
Participants – the competition is open for all levininers, levi9 alumni, customers, partners and prospects.
Teaming-up – you can play alone or in a team of up to three
people (at least 1 levi niner is a must). One team member is a team captain who registers the team. Each team member can solve challenges independently and earn points for the team.
You can register your teams on CTFD platform on the day
of the competition but we encourage you to decide with whom you will team up for the challenge before the competition.
If you are interested to participate, but do not have a team, you can look for team members using below mentioned channels.
CTF Communication Channel – after the pre-registration you will be added to a MS Teams channel ‘Levi9 Capture The Flag 2025’ which will be main interaction and support platform.
NOTE: In case of any troubles during pre-registration and joining MS Teams channel — reach us by email ctf9@Levi9.com.
Check out our awesome video
Organisation Team
Milic Vuletic
Cyber Security Lead
Alexandru Vornicu
ISO
Serhii Rozumenko
ISO
Vladislava Stanivukovic
ISO
Branislav Bozejac
Cyber Security Specialist
Julija Gojković
Employer Branding Expert
Veljko Karadzic
ISO
Tanya van Witzenburg
HQ ISO
Miloš Milovanović
Cyber Security Specialist