(Reuters) – McDonald & # 39 ;s Corp., the world's largest hamburger chain, said on Friday that a data breach in South Korea and Taiwan has exposed some information about customers and employees, making it the latest global company to target against cybercriminals.  The attackers gained access to emails, phone numbers and delivery addresses, but the crime did not include customer payment information, the company said.
The details of the infringement in the two regions were the result of an investigation by external consultants following an unauthorized activity in the company's network.
"While we were able to close access quickly after identification, our investigation found that a small number of files were accessed, some of which contained personal information," McDonald & # 39 ;s said in a statement.
The burger chain said it will take steps to notify regulators and customers listed in the files. excluding meat processor JBS and Colonial Pipeline oil have disrupted operations for several hours, which has led to concerns about delivery shortages.
Some companies have had to pay a ransom to gain control of their operations and restart production. McDonald & # 39; s said that day-to-day operations were not affected and that a ransom was not involved.
The company said it would use the results of the survey to identify ways to improve its security measures.