It may not be the household name that Walmart is, but an awful lot of people around the U.S. get their crafting supplies from the 1000+ Michaels stores around the country. Over the weekend, the retailer warned customers that it “may have experienced a data security attack.”

“We are working closely with federal law enforcement and are conducting an investigation with the help of third-party data security experts to establish the facts,” reads a letter [PDF] from CEO Chuck Rubin. “Although the investigation is ongoing, based on the information we have received and in light of the widely-reported criminal efforts to penetrate the data systems of U.S. retailers, we believe it is appropriate to notify our customers that a potential issue may have occurred.”

The store is asking customers to review their credit and debit account statements for any unauthorized charges or unexplained actions.

“If you believe your payment card may have been affected, you should immediately contact your bank or card issuer,” writes Rubin. “If we find as part of our investigation that any of our customers were affected, we will offer identity protection and credit monitoring services to them at no cost.”

Michaels customers with questions can contact the retailer at 1-877-412-7145, Monday through Saturday from 8:00 a.m. CST to 11:00 p.m. CST and Sunday
from 8:00 a.m. CST to 8:00 p.m. CST.

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