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Alleged Data Breach of MediaMarkt Switzerland Exposing 3.7 Million Customer Records

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Alleged Data Breach of MediaMarkt Switzerland Exposing 3.7 Million Customer Records

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
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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