Overview

• The retailer is notifying hundreds of thousands of affected loyalty members and urging vigilance for phishing attempts using the stolen details.
• Exposed information includes names, postal addresses, email addresses, phone numbers, and loyalty card numbers tied to customer accounts.
• Auchan says no banking information, account passwords, or loyalty card PIN codes were accessed in the incident.
• The company reported the breach to France’s data protection authority CNIL and says it contained the attack and strengthened security.
• Auchan has not explained how the breach occurred or identified an attacker, and it has not responded to reporters seeking technical details.