Danish turbine giant Vestas has been hit by a cyber security incident on 19 November.
It has since then together with external partners worked around the clock to contain the situation and re-establish the integrity of its IT systems, Vestas said.
The company’s preliminary findings indicate that the incident has impacted parts of Vestas’ internal IT infrastructure and that data has been compromised.
The work and investigation are still ongoing, Vestas said.
However, there is no indication that the incident has impacted third party operations, including customer and supply chain operations, the company added.
Vestas’ manufacturing, construction and service teams have been able to continue operations, although several operational IT systems have been shut down as a precaution.
The company said it has already initiated a gradual and controlled reopening of all IT systems.
“Vestas is doing its utmost to keep stakeholders informed about the situation and will provide further updates when possible,” it said.