GMO Internet Group's Team Wins DEF CON 34 CTF Finals

• •GMO Internet Group's team 'Blue Water' won 1st place at DEF CON 34 CTF Finals.
• •The team had previously finished 2nd for three years before this victory.
• •GMO plans to use insights from the competition to improve cybersecurity practices.

At DEF CON 34, held from August 6-9, 2026, in Las Vegas, the international team 'Blue Water,' which included members from GMO Internet Group, secured 1st place in the Capture The Flag (CTF) competition. This victory marks a significant achievement after the team finished 2nd for three consecutive years. The event showcased the skills of white-hat hackers from various countries, emphasizing the importance of collaboration in cybersecurity. GMO Internet Group plans to leverage the knowledge gained from this competition to enhance their security measures and develop future cybersecurity professionals. The competition highlighted the evolving nature of cybersecurity challenges, particularly with the rapid advancement of AI technologies. Six teams from GMO Internet Group participated, with notable placements across various categories, including IoT and game hacking. The success of 'Blue Water' reflects the dedication and expertise of its members, as expressed by team representative Yuki Koike.