Ransomware leaks 1.2 TB of Kudankulam nuclear plant data

A ransomware group has published a massive trove of documents on the dark web, claiming the files contain sensitive information related to India's largest nuclear power plant. The group, known as World Leaks, alleges it stole the data from Reliance Group, a contractor involved in the construction of new units at the Kudankulam Nuclear Power Plant in Tamil Nadu.

Reliance Group has confirmed a partial data breach affecting information stored on a server hosted by the third-party Indian data center provider Yotta. The company stated it has informed the government of the incident but did not specify what data was compromised. Yotta reported detecting suspicious activity on a Reliance Infrastructure server on May 29 and said it immediately terminated the activity, preventing a suspected ransomware execution. By the end of June, the company was informed that external threat actors were claiming to possess stolen data.

The published dataset is extensive, comprising approximately 858,000 files totaling about 1.2 terabytes of data. A review of the material indicates that roughly 19,000 of these files contain what appear to be the most sensitive information. The documents, which span from...