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 cctf-at-tutanota.com.



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