---
title: "Data breach at Ex&Co (réseau Expert / Connexion)"
description: "On 11 September 2026, an attacker claimed on a cybercrime forum to have leaked a file presented as coming from Boulanger.com, though sample analysis indicates it actually corresponds to after-sales service records from around fifty independent stores in the Ex&Co network (Expert and Connexion brands"
canonical: https://inyourgeek.com/en/fuites-de-donnees/2026-09-11-ex-co-reseau-expert-connexion
type: fuite-de-donnees
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-09-11
dateModified: 2026-09-11
---
# Ex&Co (réseau Expert / Connexion)

Data breach — Moderate

On 11 September 2026, an attacker claimed on a cybercrime forum to have leaked a file presented as coming from Boulanger.com, though sample analysis indicates it actually corresponds to after-sales service records from around fifty independent stores in the Ex&Co network (Expert and Connexion brands), in which Boulanger has held a stake since 2018. The file reportedly contains about 132,000 repair and warranty records covering roughly 61,000 distinct customers, opened between 2010 and September 2026, mainly in Meurthe-et-Moselle, Ardèche and Lot.

The precise link between contact details, the actual appliance purchased and the reported fault makes it easier to run fraudulent after-sales-service scams that appear legitimate.

| Fact | Value |
| --- | --- |
| Disclosed on | September 11, 2026 |
| Accounts affected | 61,000 |
| Sector | Retail |
| Country | France |
| Cause | Undisclosed |
| Severity | Moderate |
| Status | Reported |

## Exposed data

- Full name
- Postal address
- Phone number
- Email address
- Order history
- Customer ID
- Other personal data

## What you can do

- Expect phishing attempts quoting your name and this company. A message that knows your details is not legitimate for that reason.
- You can ask the organisation exactly what was exposed about you (right of access), and complain to the DPA if no answer comes within a month.

## Sources

- [Boulanger / Ex&Co : fuite revendiquée visant 61 275 clients du SAV](https://fuitesinfos.fr/article/2026-09-11-boulanger-exetco-sav-magasins-partenaires) — Fuites Infos
- [Cybersécurité : Boulanger victime d'une fuite de données, des millions de Français concernés](https://www.usine-digitale.fr/article/cybersecurite-boulanger-victime-d-une-fuite-de-donnees-des-millions-de-francais-concernes.N2218196) — Usine Digitale
- [Boulanger touché par une revendication de cyberattaque impliquant 132 000 dossiers SAV](https://www.cyberattaque.org/boulanger-touche-par-une-cyberattaque-avec-132-000-dossiers-sav-revendiques-en-fuite/) — Cyberattaque.org
- [Boulanger : un pirate revendique la fuite de 132 000 dossiers clients liés au SAV](https://frenchbreaches.com/blog/boulanger-un-pirate-revendique-la-fuite-de-132-000-dossiers-clients-lies-au-sav) — FrenchBreaches
- [Fuite de données Boulanger : informations et protection](https://hginfoandco.com/fuite/22-boulanger) — HG Info & Co

_Entry built from the cited sources after a corroboration check, then reviewed before publication._

---

Equivalent HTML page : https://inyourgeek.com/en/fuites-de-donnees/2026-09-11-ex-co-reseau-expert-connexion
Published by InYourGeek — https://inyourgeek.com/en/a-propos
Method and safeguards : https://inyourgeek.com/en/methode
Full register : https://inyourgeek.com/en/fuites-de-donnees