OSLO—Russia, China and other countries are using espionage to glean secrets of Norway’s petroleum industry and plans by its government to cut or increase production, the Norwegian counterintelligence service PST said.
In a report dated Nov. 5 but published on Thursday, the service warned of possible attempts to recruit sources or hack computers, as in a major cyberattack six years ago, and said renewable energy could become a focus for foreign spies.
