Svenska kraftnät Investigates Data Breach Linked to Everest Ransomware
Category:Breach / Critical Infrastructure
Swedish power grid operator Svenska kraftnät confirmed a data breach tied to the Everest ransomware group. The attack affected a limited external file transfer system but did not disrupt grid operations. Investigations continue as Everest claims responsibility, linking it to prior European infrastructure incidents.
CORTEX Protocol Intelligence Assessment
Business Impact: Indicates sustained targeting of energy infrastructure, posing operational continuity and data confidentiality risks. Technical Context: Likely leveraged external file transfer service vulnerabilities with limited system penetration.
Strategic Intelligence Guidance
- Isolate compromised external systems and rotate credentials.
- Harden OT and IT boundary segmentation.
- Enhance ransomware recovery playbooks for utilities.
- Share IOCs with national CERTs and grid operators.
Threats
Targets
Intelligence Source: Svenska kraftnät investigates data breach linked to Everest ransomware group | Oct 29, 2025