DENVER (CBS4) – A popular car wash in Denver is warning customers of a data breach.

(credit: CBS)

Thousands of people’s information could be at risk. It affects customers who used a credit or debit card at the Waterworks Car Wash on South Broadway. Specifically, those who visited between Feb. 18-28.

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(credit: CBS)

Waterworks says its third-party point-of-sale system was hacked. The hackers got cardholder names, numbers and security codes.

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Waterworks is offering one year of free credit monitoring to anyone affected.

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(credit: CBS)

Those who think their personal information was compromised should visit