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DataCenter Fire Takes 600+ South Korean Government Websites Offline

## Incident Report: Data Center Fire in South Korea

TBy Thomas BlakeSep 29, 20251 min read

Incident Report: Data Center Fire in South Korea

A lithium-ion battery explosion at the National Information Resources Service (NIRS) data center in Daejeon, South Korea, resulted in a significant fire on the evening of Fri, Sep 27, 2025. This incident led to a widespread disruption of over 600 government IT systems.

The fire affected essential operations, including postal banking, mobile identification, tax collection, and emergency services. The blaze began at approximately 8:20 PM local time during battery relocation work, causing a thermal runaway that complicated firefighting efforts over a period of nearly 10 hours.

To mitigate the damage, authorities shut down all IT systems at the facility. The fire was extinguished by the following evening, but elevated temperatures delayed the restoration process.

The outage impacted several critical public services:

This incident led to a widespread disruption of over 600 government IT systems.
Thomas Blake · Thehackingpost

Mobile identification systems, crucial for airport security checks, were rendered inaccessible. Banking functions of the national postal service were disrupted, affecting card payments and money transfers. Emergency services lost location-tracking capabilities within the 119 rescue system. Government email networks and the national legal database experienced downtime.

The Ministry of the Interior and Safety prioritized recovery efforts based on public safety and economic importance. By Mon, Sep 30, 2025, 46 services were restored, including key portals like Government24 and parts of Korea Post's financial systems.

Recovery efforts continue, with 96 systems still facing restoration challenges. One employee sustained first-degree burns during the incident. In response, Prime Minister Kim Min-seok issued an apology, acknowledging vulnerabilities due to the concentration of critical systems in a single location.

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President Lee Jae Myung has mandated improvements in the security protocols of government systems to prevent future incidents. This event marks the second major data center fire in South Korea within three years.

For further information, please refer to official government communications or contact the Ministry of the Interior and Safety.

Based on reporting by Cyber Security News.

AI transparency. This article was produced with the assistance of artificial intelligence and published under human editorial oversight. AI systems can make mistakes. Read how we use AI (EU AI Act, Art. 50).
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