CERUMO Co., Ltd

CERUMO Co., Ltd was compromised in a ransomware attack attributed to NIGHTSPIRE in February 2026. The organization, operating in an undisclosed sector in Japan, was added to the group's data leak site as part of an extortion campaign.

NIGHTSPIRE operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.

Data is not accessible for now