Viasat KA-SAT network disruption

Russian state-linked; AcidRain wiper, timed with the invasion of Ukraine. Bricked tens of thousands of modems across Europe; disrupted Ukrainian military comms and remote monitoring for thousands of German wind turbines.

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Summary

  • Environment: Satellite/Telecom
  • Operational impact: Bricked tens of thousands of modems across Europe; disrupted Ukrainian military comms and remote monitoring for thousands of German wind turbines
  • Financial impact: No financial figure is established by the reviewed source evidence
  • Record status: Developing record. Reviewed September 19, 2026; updated as evidence emerges.

What happened

In Feb 2022, Viasat experienced an incident in its satellite/telecom environment. The retained source describes the attack path as follows: Russian state-linked; AcidRain wiper, timed with the invasion of Ukraine. [1]

The documented consequence was: Bricked tens of thousands of modems across Europe; disrupted Ukrainian military comms and remote monitoring for thousands of German wind turbines. [1]

Impact

  • Documented impact: Bricked tens of thousands of modems across Europe; disrupted Ukrainian military comms and remote monitoring for thousands of German wind turbines. [1]
  • No financial loss, ransom amount, recovery cost, or regulatory penalty is established by the reviewed source evidence.

Threat Group & Attack Vector

The retained source describes the attack path as follows: Russian state-linked; AcidRain wiper, timed with the invasion of Ukraine. The canonical record does not add intrusion steps beyond those supported by the source. [1]

Actors

  • No threat actor group has been identified in the reviewed public evidence.

TTPs

Response

The retained source describes system restoration or operational recovery work. [1]

This account is bounded to NCSC Annual Review 2023. Details absent from that evidence are left unresolved rather than inferred. [1]