Join the Challenge Now!

Wed, 28 Oct. 2020 10:00 CET — Wed, 18 Nov. 2020 18:00 CET

A unique cryptocurrency focused Capture The Flag. Open to all people wishing to measure themselves against the challenges of Ledger security experts & researchers.

Hardware wallet, blockchain,... will you be able to break through the defense of the Donjon and get the reward?

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Create your account and begin challenges to reach the top of the scoreboard.


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Before getting started, check out the rules.



1st prize 400$ in cryptocurrencies + 1 limited edition Ledger Backup Pack

2nd prize 100$ in cryptocurrencies + 1 limited edition Ledger Backup Pack

3rd prize 1 limited edition Ledger Backup Pack

4th - 10th prizes 1 limited edition Ledger Nano X



This event is brought to you by Ledger Donjon, the security team at Ledger.