Midwestern grocery store Schnucks said over the weekend that its terminals were being used by criminals to capture customers' credit card information at the checkout counter.
The St. Louis company said it hired a computer forensics firm to find the compromised devices. The chain said it's working on determining how many customers were affected and which stores hackers targeted.
"After an extensive review, we confirmed that Schnucks was the victim of a cyberattack," said the company's chairman and chief executive Scott Schnuck,
The investigation was originally set off by customer complaints, according to the release.
