Taiwan Semiconductor Manufacturing Co., which makes chips for the iPhone and other devices, is recovering from a debilitating computer virus but warned of delayed shipments and reduced revenue because of the impact on its factories.

TSMC said that 80 percent of the fabrication tools affected by a virus outbreak Friday evening had been restored and that it expects full recovery on Monday. The Taiwanese company said the incident, which comes as it ramps up chipmaking for Apple Inc.’s next iPhones, would delay shipments, without specifying which customers would be affected. Its shares fell more than 1 percent in Taipei.

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