Naval Staff Target 7056 and the Atomic Signature of the Deep
The Royal Navy transferred the HMS Grimsby to Ukraine in 2023, but the technical logic of the ship's design was hidden for decades inside a spy agency's target file.
By Roy Castellano ·
Royal Navy
Harry Houghton Betrayed Naval Detection Secrets for 10 Years
Secret files from the Security Service's Personal series track a decade of betrayal that left the Royal Navy's underwater defenses exposed to the Soviet Union until 1961.
By Constance Bell ·
British Clerk Harry Houghton Sold Underwater Secrets to Moscow for a Decade
A naval clerk and his accomplice compromised the defense of the seas for ten years before their 1961 conviction, a betrayal tracked in files kept by the Security Service.
By Harlan Pryce ·