Roger Hollis in 1956 and remaining in that post until his retirement in 1965. After Kim Philby's flight from Beirut to Moscow in 1963, rumours began to circulate that Hollis had alerted him to his impending arrest. Hollis was criticised for not alerting John Profumo, the War Secretary in Prime Minister Harold Macmillan's Conservative government, that he might have become entangled with a Soviet spy ring through his friendship with Stephen Ward, and his affair with showgirl Christine Keeler, who was introduced by Ward to Profumo. Soviet Naval Attache Eugene Ivanov was also involved with Keeler at this time, in the early
Profumo affair his memoirs, "The Naked Spy", were serialised in "The Sunday Times". When this account was challenged by Profumo's lawyers, the publishers removed offending material. In August 2015, "The Independent" newspaper published a preview of a forthcoming history of Soviet intelligence activities, by Jonathan Haslam. This book suggests that the relationship between Ivanov and Profumo was closer than the latter has admitted. It is alleged that Ivanov visited Profumo's home, and that such was the slackness of security arrangements that the Russian was able to photograph sensitive documents left lying about in the minister's study. Keeler describes meeting Ivanov in Moscow,