Japan
JPN
Ransomware attack on DWANGO disrupts Niconico and KADOKAWA publishing operations
A large-scale ransomware cyberattack discovered on 8 June 2024 struck DWANGO-dedicated servers in the KADOKAWA Group data center and targeted Niconico and related services. Emergency shutdowns suspended all Niconico family services and also disrupted materially connected KADOKAWA businesses: paper-book order receipt, publishing manufacturing and distribution systems, some online-shop ordering and shipments, and publication workflows. KADOKAWA later reported that shipments of existing publications fell to roughly one-third of normal levels and major Niconico services did not resume until 5 August.
89
Estimated severity
89 / 100
93
Source reliability
93 / 100
Approximate Date
08/06/2024
Targeted Company
DWANGO
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
KADOKAWA (Subsidiary)
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
Production slowdownOrder processing disruptionOrder fulfillment or delivery disruptionShipping disruptionService unavailabilityERP or business system disruption
Affected sectors
Media & EntertainmentTechnology & IT Services
Affected departments
Information Technology
Attack Profile
Attack types
RansomwareData exfiltration
Attributed threat actors
No information