Russian hackers targeted US nuclear labs amid Vladimir Putin’s threats
- A team known as Cold River conducted a digital blitz over the summer, as Putin indicated Russia was willing to use nukes to defend its territory
- Dubbed ‘one of the most important hacking groups you’ve never heard of’, Cold River has been involved in dozens of recent high-profile hacking incidents

A Russian hacking team known as Cold River targeted three nuclear research laboratories in the United States this past summer, according to internet records reviewed by Reuters and five cybersecurity experts.
Between August and September, as President Vladimir Putin indicated Russia would be willing to use nuclear weapons to defend its territory, Cold River targeted the Brookhaven (BNL), Argonne (ANL) and Lawrence Livermore National Laboratories (LLNL), according to internet records that showed the hackers creating fake login pages for each institution and emailing nuclear scientists in a bid to make them reveal their passwords.
Reuters was unable to determine why the labs were targeted or if any attempted intrusion was successful. A BNL spokesperson declined to comment. LLNL did not respond to a request for comment. An ANL spokesperson referred questions to the US Department of Energy, which declined to comment.
Cold River has escalated its hacking campaign against Kyiv’s allies since the invasion of Ukraine, according to cybersecurity researchers and western government officials.
The digital blitz against the US labs occurred as UN experts entered Russian-controlled Ukrainian territory to inspect Europe’s biggest atomic power plant and assess the risk of what both sides said could be a devastating radiation disaster amid heavy shelling nearby.
