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# Alleged Data Breach of MediaMarkt Switzerland Exposing 3.7 Million Customer Records
- URL: https://darkwebinformer.com/alleged-data-breach-of-mediamarkt-switzerland-exposing-3-7-million-customer-records/
- Published: 2026-01-11T20:40:41.000Z
- Updated: 2026-01-11T20:41:01.000Z
- Author: Dark Web Informer
- Tags: Data Breaches

Dark Web Informer - Cyber Threat Intelligence

# Alleged Data Breach of MediaMarkt Switzerland Exposing 3.7 Million Customer Records

January 11, 2026 - 7:23:36 PM UTC 

Switzerland 

Consumer Electronics 

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##  Quick Facts

Date and Time of Alert

2026-01-11 19:23:36 UTC

Threat Actor

daghetiaw

Victim Country

Switzerland

Industry

Consumer Electronics

Victim Org.

mediamarkt

Victim Site

[mediamarkt.ch](https://mediamarkt.ch)

Category

Data Breach

Severity

Medium

Network

Clearweb

##  Incident Overview

A threat actor using the handle "daghetiaw" claims to be selling a database from MediaMarkt Switzerland. The threat actor states it is a well-known website in Switzerland that has been available since 2002, selling electronic and household products. There are over 3.7 million individuals in the database. 

- **Database Origin:** MediaMarkt Switzerland (mediamarkt.ch)
- **Since:** 2002
- **Total Records:** Over 3.7 million individuals
- **Full Names:** First and last names (surnames)
- **Email Addresses:** Customer email addresses
- **Phone Numbers:** Customer contact numbers
- **Ordered Articles:** Products purchased by customers
- **Customer IDs:** Unique customer identification numbers
- **Tracking Numbers:** Shipment tracking information
- **Purchase Dates:** Dates of purchase transactions
- **Product Categories:** Categories of purchased items
- **Dates of Birth:** Customer birth dates
- **Loyalty Coupons:** Loyalty program and coupon information
- **Article Ratings:** Customer product ratings and reviews
- **Language Spoken:** Customer language preferences
- **Sample Data:** Includes detailed JSON formatted customer records with purchase history, personal information, and transaction details
- **Contact:** Session messenger

##  Indicators of Compromise (IOCs)

###  Session Messenger ID 

05c7bb3a79e5ed414f39bc736a8809f55215d3c4ada092f13742107a78fcec3f1c

**Note:** This Session ID can be used to identify the threat actor's communication channel. 

##  Breach Claim URL

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##  Image Preview

[ ![MediaMarkt Switzerland database sale by daghetiaw showing 3.7 million customer records with purchase history and personal information](https://storage.ghost.io/c/6b/16/6b16ac9c-cd67-432f-b0f3-bbec941084ff/content/images/2026/01/928735697862539876259876239872-2.png) ](https://storage.ghost.io/c/6b/16/6b16ac9c-cd67-432f-b0f3-bbec941084ff/content/images/2026/01/928735697862539876259876239872-2.png) 

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