Capture the Coin is a CTF competition to help promote the field of blockchain security by challenging players in the areas of cryptography, smart contract exploitation, blockchain investigations, wallet malware, and other related topics. We invite you to have some fun learning more about this field and its unique problems by solving puzzles and winning prizes! The competition will open on August 9 at 10am PST. You can play online and at Defcon’s Blockchain Village. Also join us for the contest kick off talk on August 9 at 11:40am PST.