After announcing earlier this month that it was investigating possible security breaches in its credit card payments at some U.S. stores, Sally Beauty has confirmed that there’s evidence of a data breach, its second in a little more than two years.

Citing an ongoing investigation, Sally Beauty Holdings Inc. didn’t go into details about the scope of the breach, the company said in a press release Thursday.

“We believe it is in the best interests of our customers to alert them that we now have sufficient evidence to confirm that an illegal intrusion into our payment card systems has indeed occurred. However, we will not speculate on the scope of the intrusion as our forensics investigation is still underway,” said Chris Brickman, President and CEO. “We are working diligently to address the issue and to care for any customers who may have been affected by the incident.”

The company urges customer to monitor their credit card statements, noting that any fraudulent charges that are promptly reported will not be the responsibility of customers. Customers with concerns can call Sally Beauty at 1-866-234-9442 or email customerserviceinquiry@sallybeauty.com.

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