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Incident

Irish Department of Communications, Climate Action and the Environment

Incident posture

Attack window
Sep 2019
Location
Ireland
Status
Historical
CIA posture
Available to members
Updated
2025-11-03 00:00

Linked entities

Victim
Irish Department of Communications, Climate Action and the Environment
Threat actors
0 actors
Sources
1 source

Timeline

Occurred
Sep 2019
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

The Irish Department of Communications, Climate Action and the Environment experienced a ransomware attack compromising its IT systems. The breach occurred previously, with the department—tasked with safeguarding national cybersecurity—publicly acknowledging the incident. No further operational disruptions or data compromise specifics were disclosed in available reporting.

Motives

Detailed motive labels are available to members.

1 motive

TTPs

Detailed technique labels are available to members.

1 technique

Description

The Irish Department of Communications, Climate Action and the Environment publicly acknowledged in September 2019 that its IT systems had been compromised by a ransomware attack. The breach occurred the previous year, placing the incident timeframe in 2018. This disclosure was notable as the department held national responsibilities for coordinating cybersecurity defenses across government entities. No specific technical details about the attack vector, such as phishing or vulnerability exploitation, were disclosed in available reports. The department did not identify the ransomware variant involved or whether data exfiltration occurred alongside system encryption.

Public confirmation of the breach emerged through media reports on September 15, 2019, though internal discovery and response timelines remain undocumented. The department did not reveal whether ransom payments were made or describe any operational disruptions caused by the incident. No information exists regarding containment measures, system restoration processes, or whether external cybersecurity experts assisted in remediation. The absence of disclosed impact assessments leaves the full consequences undefined, including potential effects on Ireland's climate action or communications policy work. This incident marked a significant breach given the department's role in overseeing national cybersecurity strategy development and critical infrastructure protection.

Sources

Sources available to members: 1 source.

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