Japan
JPN
Oriental Diamond confirmed that a third party used ransomware against a company-managed server on May 4, 2026. Encryption affected the head-office file server and the company explicitly reported a resulting business stoppage. The company also investigated possible personal-data leakage and identified a VPN path as the intrusion route.
Estimated severity
67 / 100
Source reliability
No information
Approximate Date
04/05/2026
Targeted Company
ORIENTAL DIAMOND
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
No information
Japan
JPN
No other affected countries reported
Target country
Japan
Affected countries
Impacted regions
Duration
No information
Financial impact (USD M)
No information
Impact types
Affected sectors
Affected departments
Attack types
Attributed threat actors
No information
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