Svetlana Lokhova is a By-Fellow of Churchill College, University of Cambridge. Her groundbreaking Master's dissertation on the founder of the Soviet intelligence service, Felix Dzerzhinsky led her to uncover a number of the most important archival discoveries made in recent years. She has worked extensively on the 'Mitrokhin Archive' and was until recently a Fellow of the Cambridge [UK] Security Initiative jointly chaired by the former head of MI6, Sir Richard Dearlove, and Professor Christopher Andrew, former Official Historian of the MI5. The Spy Who Changed History is her first book.