Supervalu investigating possible data breach

|By:, SA News Editor

Supervalu (NYSE:SVU) is investigating a potential data breach that might have affected more than 1,000 of its stores.

The attack seems to have occurred in late June or early July, and may have resulted in the theft of account numbers and other numerical information from payment cards used at the company's point-of-sale network.

Supervalu hasn't informed customers about the incident. Merchants often don't warn customers about attacks until they know the scope of the breach.