The hacking group has “a history of focusing their efforts on a single sector at a time, and we anticipate they will continue to target the sector in the near term,” Hultquist said. “US retailers should take note.”

“US-based retailers are aware of the threats posted by cybercriminal groups that have recently attacked several major retailers in the United Kingdom, and many companies have taken steps to harden themselves against these criminal groups’ tactics over the past two years,” Christian Beckner, a vice president at the National Retail Federation, said in a statement.