Auchan suffers cyberattack, data of over 500,000 loyalty customers stolen
On November 19, 2024, French retail giant Auchan announced it was the victim of a cyberattack that targeted personal data of over 500,000 customers enrolled in its loyalty program.
Key points
- Cyberattack affected over 500,000 Auchan loyalty program customers.
- Stolen data includes names, contact details, family composition, date of birth, loyalty card number, and loyalty pot amount.
- Banking data, passwords, and PINs were not compromised.
Connected intelligence
Signal brief
Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.
Organization
- Published
- Nov 19, 2024
- Updated
- Jul 2, 2026
- Confidence
- High
- Evidence
- 1 source
Structured assessment
Signal analysis
This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Threat source
Watch exposure paths that could affect data, operations or third-party trust.
Business impact
- Impact area
- Confidentiality
- Likely asset
- User or customer data
Mentioned entities
Quick context
Questions about this signal
What happened in this signal?
On November 19, 2024, French retail giant Auchan announced it was the victim of a cyberattack that targeted personal data of over 500,000 customers enrolled in its loyalty program. The stolen data included names, first names, email addresses, postal addresses, phone numbers, family composition (if provided), dates of birth, loyalty card numbers, and loyalty pot amounts. Auchan confirmed that banking data, passwords, and loyalty card PINs were not affected. The incident was contained, and the company notified the French data protection authority (CNIL) and affected customers.
When was this signal reported?
Shadow Tier lists Nov 19, 2024 as the signal date.
Which organization is connected to this signal?
Auchan is the organization connected to this public signal.
Explore AuchanWhich impact area is relevant?
This signal is connected to data exposure and breach intelligence based on its reported consequences.
Explore data exposure and breach intelligenceRelated signals
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