McDonald's said Friday there was no interruption to its operations after it incurred a data breach that comes amid a concerning string of cyberattacks aimed at high-profile targets.

The company said that it ทดลองเล่นสล็อต โร มา ฟรี เหมือน จริง  worked with "experienced third parties" to conduct a "thorough investigation" after identifying unauthorized activity on its network.

"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 Corporation said in a statement.

MORE: Why ransomware cyberattacks are on the rise

Their investigation found customer personal data in Korea and Taiwan had been accessed by the hackers, but said no files contained customer payment information. The company said that it will be "taking steps to notify regulators and customers listed in these files."

"In the coming days, a few additional markets will take steps to address files that contained employee personal data," McDonald's added in a statement, though it did not disclose which markets were hit by the breach. The Wall Street Journal on Friday reported that the breach disclosed business contact information for U.S. employees and franchisees, citing an internal message to U.S. employees, but that no U.S. customer data or personal employee data was exposed.

"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 stated.