Norsk Hydro steps up production at business hit by cyberattack

(Reuters) — Norsk Hydro, one of the world's largest aluminum producers, said on Monday one of its major divisions was back up to 60% of capacity after a cyberattack earlier in March.

The cyberattack forced the company to shut several metal extrusion and rolled products plants, which transform aluminum ingots into components for carmakers, builders and other industries.

"Extruded Solutions is expecting to reach an overall production rate of 60 percent by Monday," Hydro said.

The business division was running at 50% capacity on Friday.

Norsk Hydro said its building systems business, which is part of Extruded Solutions, had been the most affected by the attack, but the company was expecting to slowly ramp up its production and shipments during the week.

Following the attack, the company's aluminum smelters in Norway continued to run on a partly manual basis to avoid being affected.

The company said it had identified the cause of the problem, but was still unable to estimate the overall time needed for a full recovery, as well as the financial impact of the attack.