Taiwan Semiconductor Manufacturing Company (TSMC), which makes chips for Apple’s iPhone is back in full production after being infected with malware during the weekend.
TSMC, the world’s largest contract chipmaker, had to shut down parts of its factories. It said that over the weekend a number of its computer systems and fab tools had been infected by a virus. It expected the incident to cause shipment delays and forecast a hit to its third-quarter financial results.
TSMC also said the attack had featured a “mutation” of the Wannacry ransomware.
The manufacturing giant denied that it had been hacked and blamed an error during the installation of a new tool that had not been taken offline first.
Chief executive CC Wei told reporters he was “shocked and surprised” that the attack had taken place.
“It’s impossible that humans would never make mistakes and we have changed the system to automatically detect [the virus] and such a mistake would never be made again,” he told Reuters.
The company did not comment on where the malware may have originated.
TSMC’s other clients include Nvidia and Qualcomm. It is often listed as one of the world’s largest semiconductor manufacturers.
The Taiwan semiconductor firm produces Apple’s A11 processor that is currently in the iPhone X. It is reportedly currently making the next-generation A12 processor that is expected to be in the US technology giant’s upcoming smartphones. Apple is rumored to be releasing three new iPhone models later this year.
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