We make the world's networks safer.

Corelight’s Online CTF

Corelight’s wildly popular Capture the Flag (CTF) events are now online!

Players will compete head-to-head on dozens of security challenges using Zeek data in both Splunk and Elastic in twelve thrilling games.

Earn points for accuracy and speed as you keep up with our real-time group leaderboard. Individual game winners take home bragging rights and a $100 Amazon gift card

New to threat hunting and CTFs? No problem. Participants of all levels can have fun thanks to 1:1 in-game support offered by Corelight’s technical experts.

Sign up now to secure your FREE spot!

Corelight's Capture The Flag event is taking a break, but we'd love to have you first in line when we announce new dates!

Fill out the form below and we'll make sure you get an email with an exclusive invite just as soon as the Corelight CTF comes back, bigger and better than ever.  

We collect your name and email for registration purposes. Check out our privacy policy to learn how we keep your personal information secure.


Corelight makes powerful network security monitoring solutions that transform network traffic into rich logs, extracted files, and security insights for incident responders and threat hunters. Corelight Sensors run on open-source Zeek (formerly called “Bro”) and simplify Zeek deployment and management while expanding its performance and capabilities.