2024 Kadokawa/Niconico — 1.5TB ransomware
Data compromised
Corporate data, user info, employee data
Technical writeup
Kadokawa Corporation and its Niconico video platform suffered a major ransomware attack in 2024. Attackers stole 1.5TB of corporate and personal information of users and employees. The breach affected Niconico, Japan's largest video sharing platform.
Root cause
Ransomware; hacking