Russian state-linked hackers are reported to have run a yearlong cyber espionage operation aimed at US nuclear researchers, defense contractors, government officials, and organizations in NATO countries. The campaign appears to have focused on collecting sensitive nuclear and defense-related information.

According to the report, one of the main concerns was attempted theft of US and allied nuclear fusion research, along with other strategic secrets tied to defense and security. That places both scientific work and military-linked knowledge at the center of the operation.

The targeting pattern suggests a broad intelligence-gathering effort rather than a narrow attack on a single institution. By going after researchers, contractors, and officials across multiple NATO members, the hackers could seek access to interconnected data, project details, and policy-related information.

The case highlights how cyber operations remain a major risk for advanced research and defense networks. It also underlines the growing overlap between national security, scientific innovation, and digital espionage involving the US and its NATO allies.