Edgar Perez is a published author, business consultant for billion-dollar private equity and hedge funds and Council Member at the Gerson Lehrman Group, with subject matter expertise in cyber security, investing, trading, financial regulation (Dodd-Frank Act) and market structure.He is author of Knightmare on Wall Street, The Rise and Fall of Knight Capital and the Biggest Risk for Financial Markets (2013), a minute-by-minute account of the terrifying hours following Knight Capital