According to The Guardian and Norwegian media, the head of the Norwegian Police Security Service (PST) stated that a dam facility in Bremanger was targeted in a cyberattack in April 2025 [1]. Citing official briefings, reports noted that the attackers gained remote access to dam-related controls and characterized the incident as a sabotage operation [2]. The PST chief described the threat actors as pro-Russian hackers; no further attribution to a specific state intelligence agency is extrapolated here [3].
This event has not been officially confirmed. Content is based on media or third-party reports.
Backfill: this event became public on Aug 14, 2025 and we added it on Nov 11, 2026. It is not a new event.
HighMonitoringBackfillMedia reported
Norwegian Police Security Service Chief Attributes Bremanger Dam Cyberattack to Pro-Russian Hackers
1 min read
- Disclosed
- Aug 14, 2025
- Occurred
- Apr 1, 2025
- Published
- Nov 11, 2026
- Last updated
- Nov 7, 2026
- CVSS basis
- Our assessment
On this page
30-second summary
What happened
Who is affected
Industries mainly affected: Energy
What to do nowOur advice
The PST chief described the threat actors as pro-Russian hackers; no further attribution to a specific state intelligence agency is extrapolated here [3].
Timeline
- Incident publicly disclosed[1]
Technical details
Source-Supported Details
Source excerpt: "The head of PST, Beate Gangås, said on Wednesday: “Over the past year, we have seen a change in activity from pro-Russian cyber actors.” The Bremanger incident was an example of such an attack, she added." [1].
Source excerpt: "I en presentasjon på Arendalsuka onsdag, sier PST-sjefen at det i økende grad gjennomføres cyberoperasjoner mot mål i Vesten, der hensikten er å forårsake merkbare eller synlige resultater." [2].
References
Media3
- [1]The Guardian2025-08-14Accessed 2026-11-07Snapshot 2026-11-11 sha256 20c3a5ae7c34
“The head of PST, Beate Gangås, said on Wednesday: “Over the past year, we have seen a change in activity from pro-Russian cyber actors.” The Bremanger incident was an example of such an attack, she added.”
- [2]
“I en presentasjon på Arendalsuka onsdag, sier PST-sjefen at det i økende grad gjennomføres cyberoperasjoner mot mål i Vesten, der hensikten er å forårsake merkbare eller synlige resultater.”
- [3]
Expert help
Still not sure whether this affects you?
Tell us about your environment. We'll check it against this advisory, assess the risk, and give you concrete patch and monitoring steps.
This site aggregates public information and is not security consulting advice. Test remediation steps before applying.