MI6 why is it called that
The real British Secret Service is called the Secret Intelligence Service (SIS) although it is commonly known as MI6 (the designation from GoldenEye onwards). It is responsible for intelligence activities outside of the UK and as such can be equated to the US CIA at a simplistic level.n the novels and the subsequent movies Bond's boss, the head of the Secret Service, is known as M. Fleming based this on the real Secret Service, whose head was known by the designation C after the original director general of MI6, Sir Mansfield Cumming.