JBS Foods, the world’s largest meat processor, shut down production at multiple sites worldwide following a cyberattack.

The incident impacted multiple JBS production facilities worldwide over the weekend, including those from the United States, Australia, and Canada.

JBS Australia chief executive officer Brent Eastwood confirmed the cyberattack, and the immediate impact on the company’s Australian operations, to Beef Central. He was unable to say how long the Australian stoppage might last.

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JBS Australia said it was unable to speculate about a resumption to processing operations in Australia, saying the first priority was to assess the impact and extent of the attack.

However, it said processing operations would be impossible without normal access to IT and internet systems. The impact has already filtered back to JBS’s meat sales and lot feeding operations, with incoming feeder cattle unable to be inducted without access to IT systems, Beef Central understands. JBS’s Primo Smallgoods business in Queensland has also been impacted.

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