NSA Codebreaker Challenge 2021: Ended

The challenge has ended but you may still continue playing. New results will not display on the leaderboard.

Congratulations to the top schools and players this year!

Register now. You can read more on the Challenge Page.

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  • Study the links on the Resources page
  • Join the Community of Practice Discord server
  • Sign in, then click "Get Help" in the bottom right corner

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