Norway
NOR
Hackers remotely manipulate Breivika Eiendom dam controls
On 7 April 2025, attackers gained remote access to the control interface of a dam owned by Breivika Eiendom in Bremanger, Norway, and opened a water outlet, increasing discharge by about 500 liters per second for roughly four hours. Norwegian authorities later attributed the operation to pro-Russian actors and linked it to Z-Pentest Alliance. The manipulation did not cause reported injuries or structural damage but constituted a direct cyber-physical disruption of dam control equipment.
72
Estimated severity
72 / 100
94
Source reliability
94 / 100
Approximate Date
07/04/2025
Targeted Company
BREIVIKA EIENDOM
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
No information
Geographic Impact
Country Targeted Company
Other Affected Countries
No other affected countries reported
Target country
Norway
Affected countries
Norway
Impacted regions
Vestland · Norway
Operational Impact
Duration
0.17 days
Financial impact (USD M)
No information
Impact types
OT or ICS disruptionOperational disruption
Affected sectors
No information
Affected departments
Facilities & Physical OperationsEngineering & Maintenance
Attack Profile
Attack types
Unauthorized accessICS/OT compromise
Attributed threat actors
Z-PENTEST ALLIANCE
Sources
Incident Sources
reuters.comhttps://www.reuters.com/technology/norway-spy-chief-blames-russian-hackers-dam-sabotage-april-2025-08-13/faktisk.nohttps://www.faktisk.no/artikkel/prorussiske-cyberangrep-mot-nordiske-land/129041thaicert.or.thhttps://www.thaicert.or.th/en/2025/07/02/hackers-breach-norwegian-dam-open-water-valves-for-4-hours-due-to-weak-password/ilaks.nohttps://ilaks.no/steinvik-fiskefarm-var-malet-til-russiske-hackere/