Mediaworks Hungary Suffers Serious Hacker Attack, 8.5TB Data Stolen
Mediaworks Hungary Zrt., a major Hungarian media organization, announced on April 30, 2026, that it had been the victim of a serious hacker attack. The cyber-extortion group World Leaks claimed responsibility, alleging the theft of nearly 15 million files, totaling approximately 8.5 terabytes of sensitive data. The exposed material reportedly included names, addresses, bank account details, internal records, and public-interest documents. Hungary's data protection authority later launched an investigation into the incident.
Signal context
First seen: Apr 30, 2026
Last updated: Jun 25, 2026
Status: Public signal
Key points
- Attack occurred on April 30, 2026.
- Mediaworks Hungary Zrt. publicly announced the attack on April 30, 2026.
- World Leaks cyber-extortion group claimed responsibility.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Information
Likely country: Location not provided
Watch internet-facing systems, credential abuse and exploit activity.
- Source type: outside the affected organization
Impact area: Confidentiality
Likely asset: User or customer data
- 26 signals in the same sector
- 90 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
NAIH warns media against publishing data from Mediaworks Hungary Zrt. breach | Newshttps://www.dataguidance.com/news/hungary-naih-warns-media-against-publishing-data-mediaworks-hungary-zrt-breachPublic source from dataguidance.com.
World Leaks Ransomware Claims Massive Mediaworks Hungary Breach, Exposes 8.5TB of Sensitive Data - NeuraCyb - Cybersecurity Intelligencehttps://neuracyb.com/world-leaks-ransomware-claims-massive-mediaworks-hungary-breach-exposes-8-5tb-of-sensitive-data/Public source from neuracyb.com.
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