EnergyWatch

Vestas withheld "relevant and useful" information on cyberattack, say authorities

Danish public authorities and energy sector players were kept in the dark for days about basic information relating to the hacker attack that stunned Vestas in November. Withheld information prevented other parties from making risk assessments, according to an internal note. Vestas rejects claims of nontransparency.

Photo: MHI Vestas

BRUSSELS / AARHUS

Several days after international cybercriminals held Vestas' IT systems hostage, both Danish public authorities and the energy sector experienced a clear case of nontransparency from the wind turbine manufacturer, reluctant to share information that could have supported the defense of other parts of the domestic energy sector, according to a document sent to the Danish Ministry of Climate, Energy & Utilities.

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