Japan
JPN
DDoS attack disrupts Resona internet banking services
Beginning on 29 December 2024, Resona group banking services experienced access failures caused by large volumes of externally generated traffic. Personal internet banking became unavailable at Resona Bank, Saitama Resona Bank, Kansai Mirai Bank and Minato Bank for part of the incident. Resona later confirmed a series of similar attacks during December 2024 and January 2025 and stated that no information leakage or virus infection had been identified.
67
Estimated severity
67 / 100
90
Source reliability
90 / 100
Approximate Date
29/12/2024
Targeted Company
RESONA BANK
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
Japan
Affected countries
Japan
Impacted regions
No information
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
Service unavailability
Affected sectors
Finance & Insurance
Affected departments
Information Technology
Attack Profile
Attack types
Distributed denial of service
Attributed threat actors
No information