Mediaworks Hungary Data Leak Dumps 15M Files
Mediaworks Hungary disclosed a serious hacker attack on May 4, 2026, stating that it became the victim of the attack on April 30, 2026. Hungary's data protection authority later reported that hackers unlawfully obtained nearly 15 million files, totaling about 8.5 terabytes, and published them on the dark web. The exposed material reportedly included names, addresses, bank account details, internal records, and public-interest documents.
Signal context
First seen: May 4, 2026
Last updated: Jun 29, 2026
Status: Public signal
Key points
- Incident disclosed on May 4, 2026.
- Serious hacker attack occurred on April 30, 2026.
- Nearly 15 million files (8.5 TB) unlawfully obtained and published on the dark web.
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: Finance and Insurance
Likely country: Location not provided
Watch process controls, misconfiguration and accidental disclosure paths.
- Source type: outside the affected organization
Impact area: Confidentiality
Likely asset: User or customer data
- 21 signals in the same sector
- 90 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
Ransomware group claims breach of pro-Orbán Hungarian media firmhttps://therecord.media/ransomware-group-claims-breach-of-pro-orban-media-firmPublic source from therecord.media.
World Leaks Ransomware Claims Massive Mediaworks Hungary Breach, Exposes 8.5TB of Sensitive Data - NeuraCyb - Cybersecurity Intelligencehttps://www.neuracybintel.com/articles/world-leaks-ransomware-claims-massive-mediaworks-hungary-breach-exposes-85tb-of-sensitive-dataPublic source from neuracybintel.com.
World Leaks Just Dumped 8.5TB From Hungary's Pro-Orbán Media Empire - Gblockhttps://www.gblock.app/articles/world-leaks-mediaworks-hungary-orban-ransomwarePublic source from gblock.app.
Biggest Cyber Attacks, Data Breaches, Ransomware Attacks of May 2026https://www.cybermanagementalliance.com/blog/biggest-cyber-attacks-data-breaches-ransomware-attacks-may-2026/Public source from cybermanagementalliance.com.
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