Adidas has reportedly alerted millions of customers about a potential data breach, after "an unauthorized party" claimed to have acquired some of its consumer data. 

According to a statement released by the company, a preliminary investigation found the leaked data includes contact information, usernames and encrypted passwords, but they do not believe any credit card or health and fitness information was compromised.

The statement reads:

"Adidas today announced that it is alerting certain consumers who purchased on adidas.com/US about a potential data security incident. On June 26, adidas became aware that an unauthorized party claims to have acquired limited data associated with certain adidas consumers."

"Adidas is committed to the privacy and security of its consumers' personal data. adidas immediately began taking steps to determine the scope of the issue and to alert relevant consumers. adidas is working with leading data security firms and law enforcement authorities to investigate the issue."

“We are alerting certain consumers who purchased on adidas.com/US about a potential data security incident. At this time this is a few million consumers,” a spokeswoman said in an email, according to Bloomberg.