About C2C-CTF

A global Capture the Flag competition.

INCS-CoE is an International Charter of six universities from Japan, US, and UK, and is operated by 25 universities from Japan, US, UK, Israel, France, Australia, and other countries for international and inter-university research collaboration in cyber security. The Country-to-Country CTF (C2C CTF) is now nearing the end of the inaugral five-year plan that started in 2020. C2C-CTF events have been held (physically and/or virtually) at: Royal Holloway, University of London, UK in 2020; Ben-Gurion University and Israel Institute of Technology, Israel in 2021; Massachusetts Institute of Technology, USA in 2022; and, Keio University, Japan in 2023.

In 2024, Edith Cowan University hosted the C2C-CTF as a fully on-line, virtual event.

We are delighted to pass on the hosting responsibilities to Northeastern University, Boston, USA for 2025. The 2025 event website is available here.

With thanks to our technology partner and sponsor, FIFTH DOMAIN.

Prizes (USD)

1st placed team: $3000 ($600 per team member)
2nd placed team: $2000 ($400 per team member)
3rd placed team: $1250 ($250 per team member)