Just as the technological revolution has transformed how people live and do business, it has upended the often hidebound field of intelligence gathering. Where once the focus might have been on the savvy agent clandestinely dashing around the world, like James Bond, now it’s on something far less sexy but no less vital: big data. “That [Bond] model, if it was ever true, is completely over,” said Sir John Sawers, chief of Britain’s Secret Intelligence Service (SIS), known to fans of spy novels as MI6, from 2009 to 2014. “Now, the most important person in any intelligence service is the data analyst, because it’s the data analyst who will tell you where the threats are coming from and where the opportunities are emerging that you as an intelligence agency can exploit.”