Intermarché Confirms Cyberattack Exposing Data of Nearly 300,000 Drive Customers On August 3, 2026, French retailer Intermarché disclosed a cyberattack targeting its online grocery service, Drive Intermarché, compromising the personal data of 287,605 customers. The breach, first reported by cybersecurity outlet French Breaches, exposed names, postal addresses, phone numbers, birthdates, loyalty card numbers, and partial order histories but no financial or email data. The attack occurred the prior week, prompting Intermarché to notify France’s data protection authority (CNIL) and file a complaint with the Paris public prosecutor’s office. While the company confirmed that no banking details, loyalty point balances, or passwords were accessed, it warned affected customers about potential phishing risks, as attackers could use the stolen data to craft convincing scams. Investigations are ongoing to determine whether additional users were impacted. Intermarché serves approximately 2 million Drive customers, though the breach currently affects roughly 14% of them. The incident underscores the growing threat of data exploitation in retail cyberattacks.