---
title: "Media Markt security incident"
description: "What the retained public evidence establishes about the Media Markt 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/media-markt-security-incident-2021"
markdown_url: "https://www.ally.security/incidents/media-markt-security-incident-2021.md"
stix_url: "https://www.ally.security/incidents/media-markt-security-incident-2021/stix.json"
---

# Media Markt security incident

The retained public source describes the Media Markt incident as Hive ransomware. Other material details remain unresolved.

Last modified Sep 19, 2026 · 1 source

## Summary

- **Environment:** Retail electronics (Europe)
- **Operational impact:** The reviewed source does not establish a precise operational or data impact
- **Financial impact:** No financial figure is established by the reviewed source evidence

## What happened

In 2021, Media Markt experienced an incident in its retail electronics (europe) environment. The retained source describes the attack path as follows: Hive ransomware. [1](#source-1)

## Impact

- The reviewed source does not establish a precise affected-person count, data scope, or operational consequence.
- No financial loss, ransom amount, recovery cost, or regulatory penalty is established by the reviewed source evidence.

## Timeline

### November 8, 2021 — Documented public update

The [Ransomware-Angriff auf Mediamarkt und Saturn](https://www.heise.de/news/Ransomware-Angriff-auf-Mediamarkt-und-Saturn-6260388.html) records the incident facts used in this briefing. [1](#source-1)

### September 19, 2026 — Briefing updated

This briefing was last reviewed and updated on September 19, 2026.

## Threat Group & Attack Vector

The retained source describes the attack path as follows: Hive ransomware. The canonical record does not add intrusion steps beyond those supported by the source. [1](#source-1)

### Actors

- **Hive** — identified in the supported attack description. [1](#source-1)

### TTPs

- [T1486 — Data Encrypted for Impact](https://attack.mitre.org/techniques/T1486/) — mapped from the cited behavior. [1](#source-1)

## Response

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

This account is bounded to [Ransomware-Angriff auf Mediamarkt und Saturn](https://www.heise.de/news/Ransomware-Angriff-auf-Mediamarkt-und-Saturn-6260388.html). Details absent from that evidence are left unresolved rather than inferred. [1](#source-1)

## Assets

[Download the case-scoped STIX 2.1 bundle](<https://www.ally.security/incidents/media-markt-security-incident-2021/stix.json>)

## Sources

Primary source records used to research this incident.

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

### Ransomware-Angriff auf Mediamarkt und Saturn

news · Heise

<https://www.heise.de/news/Ransomware-Angriff-auf-Mediamarkt-und-Saturn-6260388.html>

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

Review the supporting structured claims.

1. **Used Attack Technique · 90% confidence · current**  
   Media Markt security incident: https://attack.mitre.org/techniques/T1486/
2. **Resulted In · 95% confidence · current**  
   Media Markt security incident: Hive ransomware.
3. **Resulted In · 100% confidence · current**  
   Media Markt security incident: The reviewed source documents the media markt security incident involving Media Markt.
4. **Occurred At · 100% confidence · current**  
   Documented public update: 2021-11-08
5. **Affected Organization · 100% confidence · current**  
   Media Markt security incident: Media Markt

</details>