Capture the Coin — Blockchain Category SolutionsBy Peter Kacherginsky, Mark Nesbitt, Joel Kenny, Don YuIn this post we continue our coverage of solutions for the Capture the Coin competition that we ran during Defcon 2019. We will focus on the five challenges in the Blockchain category covering a variety of topics such as Bitcoin Scripting, cryptocurrency malware, Ethereum smart contracts, and wallet forensics.Satoshi’s SecretBy Mark NesbittWhen someone says that they “own” a certain number of b...