The chief financial officer did not specify who needed protection from whom but cited the recent attacks on the Nord Stream pipelines and Deutsche Bahn as examples of breaches to security with severe consequences for supply.

Porsche had not yet been affected by such attacks, Meschke added: "It's a general concern...if we see similar situations in upcoming months, it's a common goal to achieve a more stable situation when it comes to protection of infrastructure," he said.

(Reporting by Victoria Waldersee; editing by Matthias Williams)