We need to look at the risks associated with blockchain: Willis Towers Watson's Magdalena Ramada If you are a subscriber, please sign back in to read this article Sign in If you are not currently a subscriber please see contact details below Want to read this article? For details on how to subscribe or for all commercial opportunities, including advertising, please contact:Andy StoneSales manager+44 (0) 77 4160 9204andy.stone@thomsonreuters.comRicky LameyBusiness development executivericky.lamey@thomsonreuters.com Published: Tue 12 Jun 2018