---
title: "Data breach at Région Bourgogne-Franche-Comté — Carte Avantages Jeunes"
description: "On October 1, 2026, a user going by the pseudonym \"Quantique\" published on a cybercriminal forum a database attributed to the Avantages Jeunes youth card program run by the Bourgogne-Franche-Comté region, covering roughly 318,000 profiles, with the extraction credited to an actor named \"HexDex\". An "
canonical: https://inyourgeek.com/en/fuites-de-donnees/2026-10-01-region-bourgogne-franche-comte-carte-avantages
type: fuite-de-donnees
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-10-01
dateModified: 2026-10-01
---
# Région Bourgogne-Franche-Comté — Carte Avantages Jeunes

Data breach — High

On October 1, 2026, a user going by the pseudonym "Quantique" published on a cybercriminal forum a database attributed to the Avantages Jeunes youth card program run by the Bourgogne-Franche-Comté region, covering roughly 318,000 profiles, with the extraction credited to an actor named "HexDex". An earlier leak attributed to the same actor, covering about 282,000 people, had already hit this program in January 2026; the region acknowledged it at the time and urged cardholders to change their passwords as a precaution.

The combination of a full identity, date of birth and contact details enables identity theft or targeted phishing against individuals, some of whom are minors.

| Fact | Value |
| --- | --- |
| Disclosed on | October 1, 2026 |
| Accounts affected | 318,000 |
| Sector | Public sector |
| Country | France |
| Cause | Undisclosed |
| Severity | High |
| Status | Confirmed |

## Exposed data

- Email address
- Full name
- Phone number
- Postal address
- Date of birth
- Customer ID

## 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

- [AvantagesJeunes](https://frenchbreaches.com/alertes/avantagesjeunes-muovatamt78zurmvlo) — FrenchBreaches
- [Avantages Jeunes : 318 000 profils en fuite, des milliers de mineurs exposés](https://www.cyberattaque.org/avantages-jeunes-cyberattaque-318-000-profils-en-fuite-des-milliers-de-mineurs-exposes/) — cyberattaque.org
- [Carte Avantages Jeunes piratée : vos données personnelles sont-elles en danger ?](https://www.generation-nt.com/actualites/carte-avantages-jeunes-piratage-donnees-cyberattaque-bourgogne-2069358) — Génération NT
- [Les données de 283 000 utilisateurs de la carte avantage jeunes de Bourgogne-Franche-Comté piratées et mises en vente](https://www.francebleu.fr/infos/faits-divers-justice/les-donnees-de-283-000-utilisateurs-de-la-carte-avantage-jeunes-de-bourgogne-franche-comte-piratees-et-mises-en-vente-4942220) — France Bleu
- [Piratage de la carte Avantages Jeunes en Bourgogne Franche-Comté : la Région veut « rassurer » les usagers](https://www.macommune.info/piratage-de-la-carte-avantages-jeunes-en-bourgogne-franche-comte-la-region-veut-rassurer-les-usagers/) — macommune.info
- [Carte Avantages Jeunes : fuite de données visant 282 906 jeunes](https://fuitesinfos.fr/article/2026-01-08-carte-avantages-jeunes-crij-bourgogne-franche-comte) — Fuites Infos
- [Les données de 283 000 utilisateurs de la carte avantages jeunes en vente sur le darkweb après une cyberattaque, que risquent-ils ?](https://france3-regions.franceinfo.fr/bourgogne-franche-comte/doubs/besancon/les-donnees-personnelles-de-pres-de-300-000-jeunes-en-vente-sur-le-darkweb-apres-une-cyberattaque-quels-risques-pour-eux-3284213.html) — France 3 Bourgogne-Franche-Comté

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

---

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