JBS, one of the world's largest international meat processors, was hacked Sunday, the company said in an email, forcing the company to take systems offline and stop work in North America and Australia.
The company maintains 11 beef processing facilities in Australia and 26 chicken processing plants in the U.S.
At least six JBS locations in the U.S. posted on their respective Facebook pages for workers to not come in Tuesday, an NBC review of their posts found.
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