Hackers have broken into McDonald's computer systems, the fast food chain confirms to

The Wall Street Journal

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In doing so, they stole data from customers and employees in the United States, South Korea and Taiwan.

Data has been leaked in several countries.

In the United States, information from McDonald's employees and restaurants has fallen into the hands of hackers.

The company does not consider it sensitive or personal information.

It is not clear what kind of data is involved.

Customer data has been stolen in South Korea and Taiwan.

This includes telephone numbers and addresses of customers.

In Taiwan, hackers have also stolen information from employees, including names and contact details.

McDonald's declined to say exactly how many people were affected by the leak.

The customers and employees concerned will be informed of the digital intrusion.

In addition, McDonald's has informed regulators in Asia.

The company also announced on Friday that it hired two external consultants to investigate unauthorized activity on an internal security system.

The reason for this was a specific incident in which the unauthorized access was resolved within a week.

An investigation into the hack showed that data from employees in South Africa and Russia would also have been stolen.

McDonald's said in a statement that the company is taking steps to improve security.

Recently, larger companies have been hit by similar computer intrusions more often.

For example, the largest oil pipeline company in the United States was recently hit by a hack.