On the afternoon of September 21, 2025, the 2015 PTIT CTF Finals – the “Students with Information Security” competition organized by the Posts and Telecommunications Institute of Technology (PTIt) – were a successful event. The event brought together 30 excellent teams that successfully passed the grueling qualifying rounds, entering the 3.5 hours of continuous competition in a spirit of determination and discipline. This year, the final was held simultaneously at two bridge points in Hanoi and HCMC for the first time, contributing to creating a vibrant competitive atmosphere, attracting the interest of the information security – loving student community across the country.
Air at Hanoi bridgehead
Air at Ho Chi Minh City bridgehead
The CTF (Capture The Flag) is a professional information security exam in which contestants solve reality simulations such as Web Security, Reverse Engineering, Cryptography, Pwnable or Forensic to find the “flag”. Through the PTIT CTF, students have the opportunity to train in critical thinking, teamwork, tactical planning, and professional ethics. It is also a bridge between schools and businesses, helping to discover and nurture young talents for Vietnam’s information security sector.
During the 3.5 hours of competition, teams alternately conquered a multi-layered system of exercises, which required skill analysis, precise technical manipulation, and quick reflexes to complex situations. To increase the drama and limit the “tracking” of the opponent’s tactics, the chart was frozen before the last 30 minutes. This operation opens up opportunities for last-minute bursts, while noting many exciting surprises as time passes.
Teams attempt to conquer the challenge
The Organizing Committee congratulates the teams that have made a distinguished achievement as the first team to win each of the categories:
Lugia: First Solve Web Problem and First Solve Pwnable Problem.
Lugia won the first solve for Web.
c4 n0cck4n: First Solve Reverse Engineering.
c4 n0cck4n won the First solved Reverse Engineering.
First Solve Crypto Problem.
The SECJOTA team won the First Solve Crypto Card
Lugia once again confirmed his power through the First Solve Pwnable.
Lugia won the First Solve Pwnable
Aw4k3n: First Solve Forensic.
Aw4k3n won the first solve for Forensic.
These milestones not only demonstrate the technical capabilities and preparation of each team, but also reflect the spirit of effective coordination under intense time pressure.
PTIT CTF 2025 continues to assert its role as a serious, fair, and application-rich academic playground. For students, this is the opportunity:
- Strengthen your combat skills through realistic scenarios;
- To expand networks of connection with lecturers, experts and enterprises;
- Identify personal strengths to select appropriate career paths such as pentest, digital investigation, malicious code analysis, threat research;
- Spread the spirit of learning and sharing knowledge in the information security community.
The final results will be announced during the 2025 PTIT CTF Awards, from 18:00 to 20: 00 on September 26, 2015, at A2 Hall – Post and Telecommunications Technology Academy, Ha Dong Campus, Hanoi. This will be the moment for the 2025 PTIT CTF Championship to be advanced, and also the occasion to honor the efforts of the competition teams and to pay tribute to the companionship of the advisory board, judges, sponsors.
NPM
POST AND TELECOMMUNICATIONS TECHNOLOGY SECURITY SCHOOL (PTIT)
Address: 10th Floor, Building A2, Posts and Telecommunications Technology Academy,
Km10, Nguyen Trai Road, Q. Ha Dong, Hanoi
Website: https://infosec.ptit.edu.vn
Email: attt@ptit.edu.vn
Fanpage: facebook.com/KhoaATTT.PTIT
