CHICAGO – McDonald’s Corp. was the most recent corporation to be hit with a data breach after the fast-food chain discovered unauthorized activity on its network, which exposed personal data of some customers in South Korea and Taiwan. 

The company said it will notify regulators and customers listed in the files. McDonald’s said the breach did not contain customer payment information. 

The Wall Street Journal also reported that the breach disclosed contact information of US employees and franchisees. 

“While we were able to close off access quickly after identification, our investigation has determined that a small number of files were accessed, some of which contained personal data,” McDonald’s said. “Based on our investigation, only Korea and Taiwan had customer personal data accessed, and they will be taking steps to notify regulators and customers listed in these files.”

No McDonald’s business operations were stopped due to the breach.  

“Moving forward, McDonald’s will leverage the findings from the investigation as well as input from security resources to identify ways to further enhance our existing security measures,” the company continued.

Cybersecurity crimes have come under more attention in recent weeks following the cyberattack at meat processor JBS and the Colonial Pipeline.