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Files relating to India's largest nuclear power plant Kudankulam exposed in data breach

Published

15 July 2026

Topic

regulatory

Sectors

CybersecuritySecurity Infrastructure

Geography

India

Source

Read at reuters.com

Verified

Fusion42 · 15 July 2026 · Fusion42 review

Ransomware group World Leaks posted nearly 19,000 files from India's largest nuclear power plant Kudankulam on the dark web, including purported blueprints and supplier details obtained from contractor Reliance Group. The breach, attributed to a May server compromise at third-party data centre Yotta, has been reported to Indian authorities and poses potential safety risks to the plant's ongoing Unit 3 and Unit 4 expansion.

This Wire brief sits within Fusion42's coverage of Cybersecurity and Security Infrastructure.

◆ The Wire takeaway

If you sell components, services or inspection tools into India's nuclear supply chain, your customer's security posture just became visible to ransomware groups. Expect tighter vetting of your own data systems and contractual demands for air-gapped backups before you win the next contract.

Coverage

1 source · 15 Jul 2026

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CybersecuritySecurity Infrastructurenuclear-securitydata-breachransomwarecritical-infrastructuresupply-chain-riskindia