Capture the Flag
CSAW CTF is one of the oldest and biggest CTFs with 1216 teams with 1+ points in 2021. Designed as an entry-level, jeopardy-style CTF, this competition is for students who are trying to break into the field of security, as well as for advanced students and industry professionals who want to practice their skills.
CSAW CTF occurs over two rounds: a Qualifying Round in September and a Final Round in November.
Capture The Flag 2026
CSAW CTF is designed for students who are trying to break into the field of security, as well as advanced students and industry professionals who want to practice their skills.
Open to all skill levels. Teams compete within their respective global regions.
CSAW CTF is one of the oldest and biggest CTFs with 1216 teams with 1+ points in 2021. Designed as an entry-level, jeopardy-style CTF, this competition is for students who are trying to break into the field of security, as well as for advanced students and industry professionals who want to practice their skills.
CSAW CTF occurs over two rounds: a 48-hour Qualifying Round in September and a 36-hour Final Round in November.
Full detailed rules are available here.
Challenge writers who are associated with or alumni of active teams have recused themselves from playing in or supporting teams playing in CSAW CTF.
Jeopardy-style scoring. Teams earn points by solving challenges across standard CTF categories. The team with the most points at the end of each round advances.
Top teams from the Qualifying Round are invited to the Final Round.
Register via the CTF platform. Teams compete within their respective global regions.
Contact csawctf@osiris.cyber.nyu.edu for registration questions.
Challenges are submitted through the CTF platform during the competition window. Flags must be submitted in the correct format as specified per challenge. All submissions are final once entered.
