BlackField Claims 2TB Data Theft in Ransomware Attack on Nidec Taiwan Unit

Nidec Corporation disclosed that its Taiwanese subsidiary, Nidec Chaun Choung Technology Corporation, was hit by a ransomware attack that compromised and damaged servers, forcing the shutdown of affected systems and networks. The company said the incident was confirmed on 22 June and that investigators are assessing the impact on production, shipping, business operations, and whether personal or confidential information was exposed. Nidec added that the subsidiary operates on an independent network and said the attack did not affect Nidec Corporation or other Nidec Group companies.

A previously unknown ransomware group calling itself BlackField claimed responsibility and said it stole 2TB of data from the subsidiary’s IT environment. The group demanded $2 million to delete the data, offered a $5,000-per-day delay before publication, and advertised the full dataset for sale for $400,000, indicating a double-extortion operation. BlackField also reportedly posted sample file structures and documents as proof of theft, although the authenticity of those materials had not been independently verified.