Always a little bit sceptical on reports like these - but as it is not that unlikely will leave it here anyway.

https://www.nytimes.com/2025/06/19/world/europe/china-hackers-russia-war-ukraine.html

China Is Hacking Russia to Steal War Secrets

Since the war in Ukraine began, analysts have monitored a series of intrusions aimed at stealing information about weaponry and warfighting.

The New York Times
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