Banks, exchanges and other citadels of capitalism make juicy targets for fraud, viruses, terrorism, data theft and similar cybersecurity threats. Because of CME’s central role in the global marketplace, it has more to lose than most public companies if its move to the cloud goes awry. Traders who put billions of dollars at stake every day depend on its systems to work perfectly. Any disruption could cost participants a lot of money, undermine their confidence in the marketplace and lead them to seek alternatives. All of that would be disastrous for CME.