South Korea NIRS Data Center Fire: 858 TB Data Loss and 709 Utility Outages

The fire that occurred on the evening of September 26, 2025, at the government data center of the National Information Resources Service (NIRS) in Daejeon, South Korea, caused serious disruptions in the country's digital infrastructure.

First findings of the fire

According to initial findings, the incident started as a result of a malfunction in the lithium-ion batteries in the energy storage area.

709 public services affected

709 online public services were temporarily stopped after the fire.

Lack of backup increased the scale of the crisis

Most of the losses were due to the G-Drive system not having an external backup infrastructure.

Investigation focused on battery-induced scenario

Police and technical teams are continuing their investigation to confirm that the fire was caused by lithium-ion batteries.

Official reactions and measures taken

President Lee Jae-myung visited the data center after the incident and ordered to strengthen redundancy standards.

Expert opinions

Experts emphasized that "cloud systems are not immune from physical risks."

timeline

• September 26, 2025: Yangın 20.15 civarında başladı, hızla yayıldı.

• September 27, 2025: Yangın kontrol altına alındı.

• October 1, 2025: G-Drive verilerinin kurtarılamadığı kesinleşti.

• October 10, 2025: Kurtarma oranı %30,6’ya ulaştı.

Kaynak: Beykozun Sesi