South Korea
KOR
Ransomware paralyzes Seoul Guarantee Insurance core services for three days
A ransomware infection disabled SGI Seoul Guarantee's core IT systems from July 14 until major services resumed on July 17. Guarantee-certificate issuance and other customer-facing guarantee services were unavailable or handled through temporary workarounds during the outage.
82
Estimated severity
82 / 100
96
Source reliability
96 / 100
Approximate Date
14/07/2025
Targeted Company
SEOUL GUARANTEE INSURANCE
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
No information
Geographic Impact
Country Targeted Company
Other Affected Countries
No other affected countries reported
Target country
South Korea
Affected countries
South Korea
Impacted regions
No information
Operational Impact
Duration
3 days
Financial impact (USD M)
No information
Impact types
Service unavailabilityOperational disruption
Affected sectors
Finance & Insurance
Affected departments
Information Technology
Attack Profile
Attack types
Ransomware
Attributed threat actors
No information