Home Depot said Thursday that its recent cyber attack put an estimated “56 million unique” credit and debit cards at risk.

The company said the security criminals used malware not previously seen in other attacks and that it had been present between April and September of this year.

The Atlanta-based home improvement giant began investigating the breach Sept. 2 second after being notified by banks and law enforcement.

“We apologize to our customers for the inconvenience and anxiety this has caused, and want to reassure them that they will not be liable for fraudulent charges,” said Frank Blake, Home Depot’s chairman and chief executive officer. “From the time this investigation began, our guiding principle has been to put our customers first, and we will continue to do so.”

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Attendees listen during a trade event hosted by the Georgia Indo-American Chamber of Commerce in Atlanta on Wednesday, March 27, 2024. (Ben Gray/AJC)

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In this file photo from October 2024, Atlanta Braves outfielder Jorge Soler and teammates react after losing to the San Diego Padres 5-4 in San Diego. The Braves and Soler, who now plays for the Los Angeles Angels, face a lawsuit by a fan injured at a 2021 World Series game at Truist Park in Atlanta. (Jason Getz/AJC)

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