A notorious ransomware collective known as World Leaks has leaked a vast cache of sensitive files concerning the Kudankulam Nuclear Power Plant, India’s largest atomic facility. The exposed data, purportedly sourced from a server belonging to a Reliance Group subsidiary, includes detailed floor layouts, blueprints for ventilation and cooling systems, and inspection records. While the documents do not appear to compromise the core reactor systems provided by Russia’s Rosatom, security experts warn that this information could still expose critical infrastructure vulnerabilities, identify key suppliers, and reveal potential gaps in the facility's security chain.

Reliance Group confirmed a "partial breach" occurred on a server managed by third-party provider Yotta, prompting an investigation by India’s national cybersecurity agency, CERT-In. This incident highlights the growing threat of cyber-attacks on Indian organizations, many of which remain underprepared for such breaches. As India continues to expand its nuclear energy capacity under Prime Minister Modi’s vision, the incident reignites concerns about industrial cybersecurity, especially as this is the second time the Kudankulam plant has been linked to a digital security incident following a 2019 malware scare.