OmniCTF turns cybersecurity knowledge into team practice.

OmniCTF is a Capture the Flag competition program from OmniCYBR. Teams solve authorized security challenges, find flags, and record their methods.

View the 2026 archive Read the CTF guide

What a CTF is

A Capture the Flag competition, or CTF, is a set of security challenges. Each challenge gives a team a task and an authorized system or file to inspect. When the team solves the task, it finds a hidden code called a flag.

A flag proves that the team found the intended result. It does not mean that participants attack unrelated systems. The challenge rules define what participants can test.

What participants learn

Technical investigation

Participants inspect code, network behavior, files, or data. They learn to collect evidence before they select a method.

Problem solving

A challenge can require several small discoveries. Teams learn to test a hypothesis and change direction when the evidence does not support it.

Team communication

Teams divide work, explain findings, and combine partial results. Clear notes prevent the same work from being repeated.

Responsible practice

Participants use only the systems and files identified by the competition. The defined scope is part of the technical task.

The completed 2026 event

The OmniCTF 2026 event ran online for 48 hours. Teams solved hands-on security challenges. The event structure included 12 team places in the path to the finals stage.

Status: Completed
Format: Online
Duration: 48 hours
Finals path: 12 team places
Program owner: Asociația OmniCYBR
Archive: 2026.ctf.omnictf.com

How to prepare

Start with the Introduction to CTFs guide. Then select one topic such as web security, cryptography, or digital forensics. Use legal training platforms or local practice files. Keep notes while you work.

When you solve a challenge, create a writeup. A writeup is a record of the evidence, tests, and final method. A useful writeup explains why the method works. It does not publish private data or access information for a real system.

Browse preparation resources