The Trump Hotel Collection revealed on its website that hackers gained access to its systems between May 2014 and June 2015, stealing customer credit and debit card numbers from seven Trump hotels.

The hacks occurred at the Trump SoHo New York, Trump International New York, Trump National Doral in Miami, Trump International Chicago, Trump International Waikiki in Hawaii, Trump International Hotel and Tower Las Vegas and Trump International Toronto, according to CBS News.

It was confirmed that the hackers gained access to the payment systems using the front desk at each of the mentioned hotels, though hotel restaurants and gift shops were also hacked, it's unclear if they were hacked using the same method.

Despite the hack, the hotel operator insisted that an independent forensic investigation has not found any evidence of customers' information being misused.

The company revealed that it's offering affected customers a year of free identify theft protection, and said it is working with the U.S. Secret Service and the FBI to help "catch these criminals and prosecute them to the full extent of the law," according to The Real Deal.

Republican presidential candidate Donald Trump is chairman and president of Trump Hotel Collection, and three of his children have executive roles in the company.