A computer virus crippled one of Apple’s major suppliers over the weekend.
Taiwan-based chip manufacturer TSMC warned that the infection, which was eventually contained, will delay shipments of its products and could wipe as much as $257 million off its revenue.
The virus hit the company’s computer network late Friday and spread to machines used to make chips and processors, TSMC said in a statement.
The company didn’t provide details on the source of the virus. It blamed the infection of its computer systems on “misoperation during the software installation process for a new tool.” No confidential information was compromised, the company said.
TSMC spent the weekend scrambling to get its operations back to normal. Most of the affected systems were up and running again by Sunday afternoon.
TSMC said the disruption is expected to knock 3% off its third-quarter revenue, which it had previously forecast would be in the range of $8.45 billion and $8.55 billion.
The manufacturer said it’s confident it will make up for the delayed shipments in the following quarter. TSMC is the main manufacturer of processors for Apple’s iPhones and iPads.