DELTA OBSCURA
We are the team behind Mission Cyber Sentinel, a mission dedicated to securing 446,000 digital assets globally.
Delta Knowledge Transfer Program (DKTP)
The Delta Knowledge Transfer Program (DKTP) develops educational materials such as Capture the Flag (CTF) labs to train aspiring cybersecurity professionals on identifying real-world vulnerabilities (e.g. CVEs) discovered by Delta Obscura.
Mission Details
Start Date: Oct 22, 2025
Status: Ongoing
Contributors: 1
Description
This mission focuses on volunteering to create Capture the Flag (CTF) challenges based on either our own discovered CVEs or general cybersecurity expertise. Our goal is to contribute to more than ten CTF competitions across at least ten different countries.
Members of Delta Obscura, primarily vulnerability researchers with verified CVEs, volunteer to design and participate in CTF labs as a way to share knowledge and strengthen the cybersecurity community.
Since most CTFs are annual events, we often face time constraints that make it challenging to develop machines and provide support simultaneously. For this reason, we limit our volunteer participation to up to ten CTF events each year.
HackFest 2025
Hamed Kohi (aka 0xHamy) participated as a challenge designer in HackFest 2025 held in Quebec City, contributing a total of four challenges. These challenges were inspired by real-world vulnerabilities and focused on:
- Insecure Direct Object Reference (IDOR)
- Internal File Read Misconfiguration (CVE-2025-8519)
- Server-Side Request Forgery (CVE-2025-8520)
- Weak Passwords
- Template Injection
- Reverse Engineering
- Using AI/LLMs to Solve Ciphers
CyberChess 2025
HackFest delivered a CTF-as-a-Service package for the CyberChess 2025 competition in Latvia on October 27. HackFest's team supported the event by providing both challenges and dedicated infrastructure. All support was delivered remotely via Discord, with team members working in rotating shifts to meet the needs of players and our Latvian partners.
Milestones
Contributors
| Name | Date Joined |
|---|---|
| Hamed Kohi (0xHamy) | Oct 22, 2025 |
Timeline of Events
Oct 16, 2025
0xHamy participated in HackFest 2025, where he designed four challenges and curated a track titled "Black Helicopter Vibes." These challenges focused on reverse engineering, sound-based ciphers and artificial intelligence, and web hacking. The web challenges were inspired by real-world CVEs, emphasizing practical, hands-on learning and authentic hacking scenarios.
Oct 27, 2025
0xHamy participated in CyberChess 2025, where he designed four challenges and curated a track titled "Black Helicopter Vibes." These challenges were modified and flags were rotated for CyberChess event. Additionally, Hamy as part of HackFest's Ninja Team provided remote support to CyberChess players.