Outgoing MI5 chief Jonathan Evans was appointed a Knight Commander of the Order of the Bath in January after a long career dedicated to fighting terrorism.
The Security Service director general took the top job almost six years ago at a time of unprecedented public focus on the agency in the wake the 9/11 attacks in the United States and the July 7th Tube bombings in London in 2005.
Sir Jonathan said at the time: "It's a privilege to lead MI5 and I view this honour as a recognition of the significant contribution by the men and women of the Security Service in securing the Olympics this year and the country every year."
More top news
Jeremy Corbyn's economic policies would harm the poor and leave the Tories in power for a decade, Chris Leslie has warned.
Landlords have been warned they could face up to five years in prison if they fail to remove illegal immigrants from properties.
A picture of Cecil the lion - the animal killed by an American dentist in Zimbabwe - has been projected on to the Empire State Building.