In the annals of espionage, one name towers above all others: that of H.A.R. “Kim” Philby, the ringleader of the legendary Cambridge spies. A member of the British establishment, Philby joined the Secret Intelligence Service in 1940, rose to the head of Soviet counterintelligence, and, as MI6’s liaison with the CIA and the FBI, betrayed every secret of Allied operations to the Russians, fatally compromising covert actions to roll back the Iron Curtain in the early years of the Cold War.

Written from Moscow in 1967, My Silent War shook the world and introduced a new archetype in fiction: the unrepentant spy. It inspired John le Carré’s Smiley novels and the later espionage novels of Graham Greene. Kim Philby was history’s most successful spy. He was also an exceptional writer who gave us the great iconic story of the Cold War and revolutionized, in the process, the art of espionage writing.

哈洛德‧亚德利安‧罗素‧金‧费尔比（Harold Adrian Russell "Kim" Philby 或称 H.A.R. Philby,1912年1月1日－1988年5月11日,OBE：1946-1965）是苏联在冷战时期潜伏在英国的间谍,暗中替苏联内务人民委员部和克格勃效力,提供情报。

费尔比生于印度,父亲 St. John Philby 是英国军队的情报官员,曾是印度第一个总理贾瓦哈拉尔·尼赫鲁的同学。1930年代,费尔比在剑桥大学就读时加入共产党,1933年成为苏联的谍报人员。1940年正式被苏联吸收,并加入英国情报机构,负责反间谍任务。

苏联情报单位给他的代号是 Stanley,和其他四个潜伏在英国的苏联间谍并称为“剑桥五杰”：唐纳德·麦克林（Donald Duart Maclean,代号：Homer）、盖伊·伯吉斯（Guy Burgess,代号：Hicks）、安东尼·布伦特（Anthony Blunt,代号：Johnson）和另一位身份仍未确认的英国人。

他于1955年被逐出军情六处,后来在贝鲁特担任记者,1963年逃往苏联。在苏联他为克格勃工作,升至上校军衔,1988年在莫斯科病逝。