STONEGHOST or "Stone Ghost", is a codename for a network operated by the United States' Defense Intelligence Agency (DIA) for information sharing and exchange between the United States, the United Kingdom, Canada and Australia.[1] Some sources say that New Zealand is also participating, and that Stone Ghost therefore connects, and is maintained by the defense intelligence agencies of all Five Eyes countries.[2][3]

Stone Ghost does not carry Intelink-Top Secret information. In the past, it was known as Intelink-C and may also be referred to as "Q-Lat" or "Quad link".[1] It is a highly secured network with strict physical and digital security requirements. The network hosts information about military topics, and about SIGINT, foreign intelligence and national security.[2][3]

In October 2022, a paper issued online by the Atlantic Council on sharing intelligence, authored by two now retired intelligence community insiders, refers to this programme: 'The situation is compounded by the different accreditation processes and standards, for example between the United States and the United Kingdom, where national versions of STONEGHOST (the jointly sponsored FVEY Above Secret Defense IT system), are not fully aligned.'[4]

2012 Canadian spy case

Royal Canadian Navy intelligence officer Sub-Lt. Jeffrey Delisle pled guilty on 10 October 2012 to charges including having downloaded and sold information from the Stone Ghost system to the Russian spy agency GRU.[5][6] He was sentenced to 20 years in prison, minus time served on February 6, 2013, for contravening the Security of Information Act.[7][8]


  1. ^ a b "U.S. Intelligence Community Consumers Guide 2009" (PDF).
  2. ^ a b James Cox, Canada and the Five Eyes Intelligence Community, December 2012, p. 8. Archived 2015-09-10 at the Wayback Machine
  3. ^ a b Cox, James (December 2012). "Canada and the Five Eyes Intelligence Community" (PDF). RINJ Press. Retrieved 22 January 2020.
  4. ^ "Beyond NOFORN: Solutions for increased intelligence sharing among allies". October 31, 2022.
  5. ^ "Navy spy sold secrets to Russia for $3K a month". CBC News. 10 October 2012. Retrieved 10 October 2012.
  6. ^ Corera, Gordon (28 October 2012). "Jeffrey Delisle: Canadian spy passed on UK secrets". BBC News. BBC. Retrieved 28 October 2012.
  7. ^ "Navy spy Delisle sentenced to 20 years in prison".
  8. ^ Taber, Jane (8 February 2013). "Canadian spy Jeffrey Delisle gets 20 years for selling secrets to Russia". The Globe and Mail.