"The 50-foot Blockchain Attack" is a book written by a well-known expert in the field of cryptocurrencies and blockchain technology - David Jeremy. In this book, he examines the history of cryptocurrencies, analyzes the popularity of Bitcoin and other cryptocurrencies and their impact on the modern financial system. The author draws attention to the risks and problems associated with cryptocurrencies and gives examples of fraud and deception that can occur in this industry. This book reveals to the reader interesting and important aspects of cryptocurrencies and blockchain technology, helping to better understand this complex and promising world.