Kudankulam Shows Why Critical Infrastructure Security Is a Governance Problem, Not Just a Cybersecurity Problemcff

Sensitive documents reportedly linked to India's Kudankulam Nuclear Power Plant have been exposed following a ransomware attack affecting a contractor. According to Reuters, the leaked material includes engineering drawings, supplier information and inspection records, while there is currently no evidence that reactor control systems themselves were compromised.

That distinction matters.

Too often, critical infrastructure security is viewed through the lens of perimeter defences and operational technology. In reality, critical infrastructure extends far beyond the physical facility. It includes contractors, cloud providers, engineering firms, managed service providers and every organisation entrusted with sensitive operational information.

A nuclear facility may have world-class operational security, yet still be exposed through weaknesses elsewhere in its supply chain.

This is why governance matters.

Boards should be asking:

• Who holds our critical engineering information?

• Where is it stored?

• Which third parties have access?

• What contractual security obligations exist?

• How is compliance independently validated?

• Could sensitive operational information be reconstructed from supplier data?

This incident should not be used to claim that quantum cryptography or AI would have prevented the breach. Nothing reported so far suggests this was a cryptographic failure.

The lesson is simpler and far more important.

Security is not defined by the strongest control inside the organisation.

It is defined by the weakest dependency outside it.

Critical infrastructure resilience is ultimately a governance challenge.

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