(Reuters) – Production at Norwegian aluminum producers Norsk Hydro ASA was back to almost normal after a cyber attack last month, the company says Friday.
The group ceased part of its production on March 19 and switched to other units for manual operation after hackers blocked their systems with ransomware.
It has said it would not pay hackers to unlock their files, but has not said if it actually got any ransom requirements.
"In terms of production, most operations are back to normal or near normal levels," it said. "However, the cyber attack has caused delays to some administrative processes, including reporting, billing and billing systems."
The company said it would take time to get the IT business back to normal after what it called a sophisticated attack. It did not provide a timeframe for this.
Despite the attack, Hydro's primary metal stores and most other units were able to continue production with solutions and manual solutions, although the production of extrusion operations, which are components for automakers, builders and other industries, was reduced by 50%.
The unit operations were close to normal, but still with many solutions and local variations from factory to factory, the company said.
Production in the three business units Extruusion Europe Extrusion North America and Precision Tubing were run with an average production of about 90%, while Building Systems was about 75%.
The company has provided a preliminary estimate of the financial consequences of the attacks during the first week of between NOK 300 million (USD 35 million) and NOK 350 million.
The company had an internet risk insurance with American International Group Inc., but the potential compensation Ation had a cover that the company has declined to disclose.
The Norwegian Hydro share increased by 1