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 revealed the attack in a regulatory filing with the US Securities and Exchanges Commission (SEC) on Wednesday. It said it the incident was "reasonably likely" to "have a material impact" on the firm's business operations,

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

One of America’s biggest doughnut chains is experiencing issues from a cyberattack. Krispy Kreme confirmed Wednesday, Dec. 11 that the attack is impacting online ordering in parts of the country, among other unnamed “operational disruptions.