The eCitadel Open (formerly CyberDiscord) is a free-to-play cyber defense competition that allows anyone to participate. Teams compete by securing provided Windows and Linux based virtual machines, maintaining critical services, resolving injects, and solving cybersecurity-related challenges. Teams accumulate points for addressing each scored issue and must race against the clock to accumulate as many points as they can before time expires. The 2024 eCitadel Open will be held May 17-19, 2024 and is free to enter.