CryptoCurrency (is) The Flag

Registration / Rules / Challenges / ScoreBoard / Practice

Are you ready to learn hacking cryptocurrencies through realistic examples?

The next CCTF goes live on Hacktivity! Location: MOM Cultural Center, Budapest. Date is 25-26 October 2019

Topics of the game: Proof of Authority, Smart Contracts and infrastructure bugs. Registration opens on October 15th!

Authors: members of HSBP and B9

Contact, feedback, questions: B9 matrix chat or

You can register by POSTing your nick or team name and ethereum address: