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Svenska Kraftnät

Claimed by Everest · listed 9 months ago

8m
Age
since listed · data leaked

Status timeline

  1. ListedOct 25, 2025
  2. Data leakeddate unknown

At a glance

Group
Everest
Status
Data leaked
Country
Sweden
Sector
Energy
Listed on leak site
Oct 25, 2025

About the victim

AI dossier — public-source company profile

Svenska Kraftnät (Swedish National Grid) is the Swedish state-owned transmission system operator responsible for managing Sweden's high-voltage electricity transmission grid. It balances electricity supply and demand in real time and is a critical national infrastructure operator. The authority operates under the Swedish government and plays a central role in Nordic and European electricity market integration.

Industry
Electricity Transmission & Grid Operations
Address
Sundbyberg, Sweden
Employees
500-1000
Founded
1992

Attack summary

Severity: critical — Svenska Kraftnät is a state-owned critical national infrastructure operator managing Sweden's electricity transmission grid. Any confirmed data exfiltration from such an entity constitutes a critical-severity incident due to the potential exposure of sensitive operational, governmental, and infrastructure data, as well as national security implications.

The Everest ransomware group claims to have attacked Svenska Kraftnät and has listed the disclosure status as data_published, suggesting exfiltration and publication of data. The leak post itself contains minimal detail beyond attribution, leaving the precise nature and volume of stolen data unconfirmed from the post alone.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Potentially internal operational documents
  • Potentially employee records
  • Potentially grid infrastructure data

Original description

AI-summarised, not from the leak post

Svenska Kraftnät is a Swedish state-owned energy company responsible for the nation's transmission grid for electricity. It operates on a national level ensuring the balancing of supply and demand for electricity. It manages the transmission grid (about 15,000 km of high voltage lines) and ensures that the grid is safe, reliable, and efficient. It also coordinates the cross-border exchanges of electricity and guarantees a balanced energy market.

The leak post

captured from the group's site
© 2026, All rights reserved
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Sources

Source

Indexed 9 months ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Everest

Everest is a financially-motivated ransomware group that emerged in September 2021, operating with a focus on profit-driven extortion campaigns against organizations primarily in the United States and Europe. The group's country of origin and specific affiliations remain undocumented in public threat intelligence reporting, though their operational patterns suggest they likely operate as an independent entity rather than a formal ransomware-as-a-service model. Limited public documentation exists regarding Everest's specific attack methodologies, initial access vectors, or technical capabilities, though their victim profile indicates they employ standard ransomware tactics targeting a diverse range of sectors including healthcare, technology, business services, and manufacturing organizations. Since their emergence, Everest has claimed responsibility for attacks against 339 victims across multiple countries, with the United States, United Kingdom, Italy, Germany, and Spain representing their primary geographic targets, though no specific high-profile incidents or major ransoms have been publicly documented by law enforcement or major security firms. As of current reporting, Everest appears to remain an active threat actor, though the limited public intelligence available suggests they operate as a lower-tier ransomware group compared to more prominent and well-documented criminal organizations. The group has been linked to 369 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post May 29, 2026. The operation is currently active.

Timeline of this disclosure

  • October 25, 2025Svenska Kraftnät listed by Evereston the group's public leak site

Other recent disclosures by Everest

Everest has been linked to 369 public victims on Darkfield. A sample of the most recent:

See the full Everest dossier →

Sector and geography

This disclosure adds to ransomware activity in the Energy sector, which has 652 disclosures indexed across all operators we track. Geographically, Svenska Kraftnät is reported in Sweden, a country with 111 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Everest means Svenska Kraftnät appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CERT-SE (Sweden), as required for your jurisdiction.
  • Monitor for the data appearing on Everest's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.