Hackers with ties to China conducted a sustained campaign stealing research data from institutions in the United States and Canada, persisting for more than a year before being detected, according to Google.

The disclosure, reported by Cybernews citing Google's findings, points to a prolonged intrusion rather than a smash-and-grab attack. Campaigns that run for over a year suggest the attackers were able to maintain persistent access, quietly siphoning data while avoiding detection.

Research data is a high-value target for state-linked actors because it can shortcut years of expensive scientific and technological development. Universities, national labs, and private research institutions often hold intellectual property on everything from advanced materials to medical breakthroughs — assets that rival governments have long sought to acquire covertly.

The specific institutions targeted and the precise nature of the stolen data were not detailed in the available reporting. The attribution to Chinese-linked hackers follows a well-documented pattern: U.S. and allied agencies have repeatedly identified Beijing-connected groups as responsible for large-scale intellectual property theft campaigns targeting Western research and defense sectors.

The fact that this operation spanned more than a year before coming to light is the most alarming detail — it means whoever was behind it had ample time to copy, analyze, and exploit whatever they found.