# Russian cyber intrusions into Hungarian government

> Live situation record from CLSTR: https://clstr.news/situations/russian-cyber-intrusions-into-hungarian-government
> Updated: 2026-08-11T04:16:06.000Z. Sources: 13. Developments: 3.

In late July 2026, intelligence-linked Russian APT groups, including the Turla team, breached the Hungarian foreign ministry’s network and Slovak government servers. A subsequent cyberattack targeted the Hungarian State Treasury’s agricultural and regional development IT network. While early reports on August 2 indicated that internal files were encrypted but client data remained uncompromised, newer developments suggest a more severe breach.

By August 11, reports emerged that hackers had accessed sensitive databases containing information on pensions, family support, and agricultural subsidies. The attack, also traced to Russian servers, allegedly exploited central databases protected by outdated and weak passwords. Cybersecurity experts have characterized the incident as an “IT disgrace,” noting that the breach may have compromised critical records used to determine pension eligibility, such as service history, income, and contribution data.

The Hungarian State Audit Office had previously issued warnings in 2019 regarding vulnerabilities in IT systems inherited from the National Pension Insurance Directorate. The National Cyber Security Institute (NKI) and the National Authority for Data Protection and Freedom of Information (NAIH) continue to conduct a joint investigation. The Treasury’s IT systems currently remain at limited capacity as authorities manage damage control.

## Timeline

### 2026-08-11: Hungarian State Treasury hit by major cyberattack

Hackers targeting the Hungarian State Treasury have reportedly breached sensitive databases containing pension, family support, and agricultural subsidy information via Russian servers.

3 sources. https://clstr.news/cluster/hungarian-state-treasury-hit-by-major-cyberattack

### 2026-08-02: Hungarian State Treasury IT network hit by cyberattack, no data loss reported

A cyberattack on the Hungarian State Treasury’s IT network, likely from Russian servers, encrypted some internal files but caused no data loss; services are limited while authorities investigate.

12 sources. https://clstr.news/cluster/hungarian-state-treasury-hit-by-cyberattack-linked-to-russian-servers

### 2026-07-21: Russian hackers breach Hungarian and Slovak government systems

Russian APT groups, including Turla, infiltrated Hungarian and Slovak government networks, accessing sensitive data and also affecting several other EU countries, with officials denying prior knowledge.

5 sources. https://clstr.news/cluster/russian-hackers-breach-hungarian-and-slovak-government-systems

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Cite as: Russian cyber intrusions into Hungarian government. CLSTR, https://clstr.news/situations/russian-cyber-intrusions-into-hungarian-government