Denmark
Primarily a target
—
5 received·
0 initiated·
1 responses
·EU · NATO
This quarter to date, 5 new cyber operations involving Denmark were added to the database: an increase from no additions in the previous period. The number of operations is currently 471% above the long-term quarter-to-date average. The Intensity of cyber operations involving Denmark cannot yet be calculated.
Maintained by EuRepoC research analysts · updated 16 Oct 2026
For this quarter to date, this country appears chiefly as a target — 5 incidents directed at it, 0 it is linked to initiating.
Source: EuRepoC Global Database as of 16 Oct 2026.
01 / 02
5 incidents · as targetCyber activity
Incidents directed at Denmark targets, and the responses they drew.
Cyber incident intensity
Mean4.0/15Moderate
Only one intensity value in this selection.
1 coded incident · This quarter to date
Database additions by weekincidents against Denmark
Bar height shows incidents added during this quarter to date; select a bar to filter this interval; hover for average intensity.
Most-targeted sectorswhat gets hit
SectorIncidentsIntensityResponded
Civil service / administration
0.0Moderate
0/3
Food
0.0Moderate
0/1
Corporate Targets
0.0Moderate
0/1
Defence industry
0.0Moderate
0/1
Energy
0.0Moderate
0/1
Government / ministries
0.0Moderate
0/1
Telecommunications
0.0Moderate
0/1
End user(s) / specially protected groups
4.0Moderate
0/1
Civil service / administration is the most-targeted sector — 3 of 5 incidents, 0 answered.
By originwho is behind activity against it
02 / 02
Incidents received & responses
Unknown
FRDK2 countries
·Food +1
Unknown Threat Actors Manipulated Danfoss Refrigeration Systems in French Supermarkets on 12 October 2026
12 Oct 2026
Incident · Unattributed
12 Oct 2026
Unknown
FRDK2 countries
·Food +1
Unknown Threat Actors Manipulated Danfoss Refrigeration Systems in French Supermarkets on 12 October 2026
Unknown
Denmark
·Civil service / administration
Unknown Threat Actors Stole Data of 8.8 Million People From Denmark's Population Registry in September 2026
1 Sep 2026
Incident · Unattributed
1 Sep 2026
Unknown
Denmark
·Civil service / administration
Unknown Threat Actors Stole Data of 8.8 Million People From Denmark's Population Registry in September 2026
Unknown
Denmark
·Civil service / administration +2
Unidentified Perpetrators Breached Identity System Of Technical University Of Denmark In Denmark In 2026
1 Jan 2026
Incident · Unattributed
1 Jan 2026
Unknown
Denmark
·Civil service / administration +2
Unidentified Perpetrators Breached Identity System Of Technical University Of Denmark In Denmark In 2026
WaterPlum (313 General Bureau of the Munitions Industry Department)
ADAEAFAL+185189 countries
·End user(s) / specially protected groups
North Korea's WaterPlum aka Contagious Interview Infected at Least 30,000 Devices of IT Professionals in Over 100 Countries from December 2025 to July 2026
1 Dec 2025
Incident · Low severity
1 Dec 2025
WaterPlum (313 General Bureau of the Munitions Industry Department)
ADAEAFAL+185189 countries
·End user(s) / specially protected groups
North Korea's WaterPlum aka Contagious Interview Infected at Least 30,000 Devices of IT Professionals in Over 100 Countries from December 2025 to July 2026
MuddyWater (MOIS)
ADAEAFAL+185189 countries
·Civil service / administration +4
Iranian State-Sponsored Hacking Group MuddyWater Conducted Espionage Against Government and Private-Sector Organisations in Asia, Africa, Europe and North America Since 2018
1 Jan 2018
Incident
1 Jan 2018
MuddyWater (MOIS)
ADAEAFAL+185189 countries
·Civil service / administration +4
Iranian State-Sponsored Hacking Group MuddyWater Conducted Espionage Against Government and Private-Sector Organisations in Asia, Africa, Europe and North America Since 2018
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