---
title: "LVMH brands customer-data incidents"
description: "What the retained public evidence establishes about the Louis Vuitton / Dior / Chanel (LVMH brands) incident, its attack path, impact, and response."
incident_type: "Cybersecurity incident"
status: "active"
last_modified: "2026-09-19"
canonical_url: "https://www.ally.security/incidents/lvmh-brands-customer-data-incidents-2025"
markdown_url: "https://www.ally.security/incidents/lvmh-brands-customer-data-incidents-2025.md"
stix_url: "https://www.ally.security/incidents/lvmh-brands-customer-data-incidents-2025/stix.json"
---

# LVMH brands customer-data incidents

Voice phishing induced personnel to authorize a malicious connected OAuth application in Salesforce. Customer data exposed across multiple LVMH brands.

Last modified Sep 19, 2026 · 2 sources

## Summary

- **Environment:** Luxury retail
- **Operational impact:** Customer data exposed across multiple LVMH brands
- **Financial impact:** No financial figure is established by the reviewed source evidence

## What happened

In 2025, Louis Vuitton experienced an incident in its luxury retail environment. The retained source describes the attack path as follows: Voice phishing induced personnel to authorize a malicious connected OAuth application in Salesforce. [2](#source-2)

The documented consequence was: Customer data exposed across multiple LVMH brands. [2](#source-2)

## Impact

- Documented impact: Customer data exposed across multiple LVMH brands. [2](#source-2)
- No financial loss, ransom amount, recovery cost, or regulatory penalty is established by the reviewed source evidence.

## Threat Group & Attack Vector

The retained source describes the attack path as follows: Voice phishing induced personnel to authorize a malicious connected OAuth application in Salesforce. The canonical record does not add intrusion steps beyond those supported by the source. [2](#source-2)

### Actors

- No threat actor group has been identified in the reviewed public evidence.

### TTPs

- [T1566 — Phishing](https://attack.mitre.org/techniques/T1566/) — mapped from the cited behavior. [2](#source-2)
- [T1528 — Steal Application Access Token](https://attack.mitre.org/techniques/T1528/) — mapped from the cited behavior. [2](#source-2)

## Response

The reviewed source does not describe containment, notification, or restoration steps in enough detail to summarize them responsibly.

This account is bounded to [Data breach notification involving Louis Vuitton](https://www.pcpd.org.hk/tc_chi/news_events/media_enquiry/enquiry_20250719.html) and [Beyond perimeter defense: Lessons from recent Salesforce instance compromises](https://www.ibm.com/new/product-blog/beyond-perimeter-defense-lessons-from-the-recent-salesforce-instance-compromises). Details absent from that evidence are left unresolved rather than inferred. [1](#source-1) [2](#source-2)

## Assets

[Download the case-scoped STIX 2.1 bundle](<https://www.ally.security/incidents/lvmh-brands-customer-data-incidents-2025/stix.json>)

## Sources

Primary source records used to research this incident.

<a id="source-1"></a>

### Data breach notification involving Louis Vuitton

regulatory · Hong Kong Privacy Commissioner for Personal Data

<https://www.pcpd.org.hk/tc_chi/news_events/media_enquiry/enquiry_20250719.html>

<a id="source-2"></a>

### Beyond perimeter defense: Lessons from recent Salesforce instance compromises

research · IBM · Oct 14, 2025

<https://www.ibm.com/new/product-blog/beyond-perimeter-defense-lessons-from-the-recent-salesforce-instance-compromises>

<details>
<summary>Evidence ledger</summary>

Review the supporting structured claims.

1. **Resulted In · 100% confidence · current**  
   LVMH brands customer-data incidents: The reviewed source documents the lvmh brands customer-data incidents involving Louis Vuitton, Dior, Chanel.
2. **Used Attack Technique · 90% confidence · current**  
   LVMH brands customer-data incidents: https://attack.mitre.org/techniques/T1528/
3. **Resulted In · 86% confidence · current**  
   LVMH brands customer-data incidents: Customer data exposed across multiple LVMH brands.
4. **Affected Organization · 100% confidence · current**  
   LVMH brands customer-data incidents: Chanel
5. **Used Attack Technique · 90% confidence · current**  
   LVMH brands customer-data incidents: https://attack.mitre.org/techniques/T1566/
6. **Affected Organization · 100% confidence · current**  
   LVMH brands customer-data incidents: Louis Vuitton
7. **Resulted In · 88% confidence · current**  
   LVMH brands customer-data incidents: Voice phishing induced personnel to authorize a malicious connected OAuth application in Salesforce.
8. **Affected Organization · 100% confidence · current**  
   LVMH brands customer-data incidents: Dior

</details>