The most senior British intelligence official, appointed yesterday to oversee MI5, MI6 and GCHQ, has a website revealing his home address, phone numbers and private photographs of himself, family and friends. 

Alex Allan, 56, is the new head of the Joint Intelligence Committee (JIC) with access to sensitive documents and information regarding anti-terrorist operations. 

But the details on his website, described by a security official as "a serious breach", reveal him as a devoted fan of the American rock band Grateful Dead and a keen cyclist who once windsurfed to work in Westminster during a train strike. 

The security breach, uncovered by The Daily Telegraph, raises questions over the vetting of senior Whitehall intelligence officials whose identities are publicly announced by the Government. 

The website shows Mr Allan posing in a skin-tight cycling outfit as well as pictures of his 50th birthday party, complete with details of friends and family. 

New intelligence Chief Reveals All On Website