Casio warns employees, customers about data leak from October ransomware attack

Summary: In October, Japanese electronics manufacturer Casio suffered a ransomware attack that compromised data of thousands of employees, business partners, and customers. The incident was linked to phishing emails and claimed by the Underground ransomware gang, leading to significant data theft and operational disruptions.

Threat Actor: Underground ransomware gang | Underground ransomware gang
Victim: Casio | Casio

Key Point :

• 6,456 employees, 1,931 business partners, and 91 customers had their data compromised.
• Data stolen included personal information, internal documents, and invoices.
• Casio has reported the incident to Japan’s Personal Information Protection Commission and is cooperating with law enforcement.
• The attack is part of a broader campaign against Japanese organizations, linked to a group called MirrorFace.