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EU and UK Blame Russia for Hack That Disrupted Viasat's Satellite Internet

The hack, which occurred right as Russia began to invade Ukraine, disrupted internet access to tens of thousands of modems for Viasat.

 & Michael Kan Principal Reporter

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UPDATE: The White House is also blaming the Kremlin for the hack on Viasat. "The United States is joining with allies and partners to condemn Russia’s destructive cyber activities against Ukraine," the US State Department said in a statement.

Original Story: The European Union and UK are officially blaming the Russian government for the Feb. 24 hack that targeted satellite internet provider Viasat. 

On Tuesday, both the EU and UK condemned the Kremlin for the cyberattack, which caused internet outages for thousands of Viasat customers across Europe. 

In response, the EU is mulling whether to punish Russia. “The European Union, working closely with its partners, is considering further steps to prevent, discourage, deter and respond to such malicious behavior in cyberspace," the governing body said. 

The hack occurred an hour before Russia began its invasion of Ukraine, according to the UK. The goal was to shut down satellite internet access for Ukraine’s military. However, the hack also ensnared consumer and commercial customers, including wind farm operators in Europe.  

The EU didn’t elaborate on the evidence linking Russia to the hack on Viasat. But the UK cited an analysis from its National Cyber Security Centre, which found that it was “almost certain Russia was responsible.” The US also contributed intelligence suggesting the Kremlin was behind the attack, the UK added.

Security researchers have uncovered the malware likely responsible for causing the disruption at Viasat. Dubbed AcidRain, it's designed to erase data from modems and routers, and has similarities with another malware strain that’s been connected to Russian state-sponsored hackers, according to the security firm SentinelOne. 

In the meantime, the EU is concerned the continent could suffer a similar incident in the future, citing how Russia continues to bombard Ukraine with destructive malware attacks. 

“​​Cyberattacks targeting Ukraine, including against critical infrastructure, could spill over into other countries and cause systemic effects putting the security of Europe’s citizens at risk,” the EU said. 

Viasat didn’t immediately respond to a request for comment. But the US company has previously said the hackers exploited a misconfigured VPN device to access its network. The ensuing cyberattack then caused the shutdown of tens of thousands modems across Europe. 

To restore the network, Viasat has been releasing over-the-air updates to the affected modems. It’s also shipped 30,000 new modems to distributors to help bring customers back online.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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