(NewsNation) — A group of hackers has stolen the private information of potentially millions of customers of luxury fashion brands Gucci, Balenciaga and Alexander McQueen, according to a recent BBC report.

According to the report, hackers stole customers’ names, phone numbers, email addresses and the amount of money they spent in stores around the world.

A spokesperson for Kering, the French parent company of the brands, confirmed the breach, stating that in June, they identified “an unauthorized third party gained temporary access to our systems and accessed limited customer data from some of our Houses.”

Without explicitly naming the affected brands, the spokesperson also confirmed that no financial information, including “bank account numbers, credit card information, or government-issued identification numbers” was stolen in the incident.

Kering said they have notified customers affected by the breach and contacted the proper authorities.

Cybercriminal group Shiny Hunters reportedly behind attack

The notorious cybercriminal group Shiny Hunters confirmed to the BBC that they were responsible for the attack in April. They claim to have acquired data linked to 7.4 million email addresses.

The group also claims to have been in ransom negotiations with Kering in June. However, the French company denies that these negotiations ever happened, asserting that they refused to pay the hacker based on law enforcement’s advice.

The cyberattack follows a broader trend of cyberattacks on luxury clothing brands. Recently, luxury fashion brands Louis Vuitton and Cartier notified their customers of data breaches.

It is unclear whether Shiny Hunters played a role in those attacks.