Krispy Kreme warned that “the incident has had and is reasonably likely to have a material impact on the Company’s business operations until recovery efforts are completed.” It added the costs associated with dealing with the attack will likely "have a material impact on the Company’s results of operations and financial condition.”

Krispy Kreme is a large chain in the US, which has more than 1,400 shops worldwide. In the UK it is smaller, but its 120

Krispy Kreme shops are open, where staff can fill orders in person, but the breach has disrupted online ordering in parts of the US.