A data breach involving the Tisza Világ app, used by Hungary’s leading opposition party (Tisza) for primary elections, resulted in the leak of personal data of ~200,000 users (names, usernames, emails, home addresses, phone numbers, and other sensitive details). The leaked database was uploaded to LeakBase.la on 31 October, following an earlier leak of 20,000 records a month prior. Hungarian authorities, including Prime Minister Viktor Orbán, launched an investigation, citing national security risks due to the involvement of Ukrainian individuals in handling the data allegedly exposing Hungarian citizens to potential influence by a warring nation. Opposition leader Péter Magyar blamed Russian hackers, claiming the breach aimed to intimidate Tisza supporters and disrupt the party ahead of the 2026 elections. The incident was labeled a major political scandal, with officials warning of extraordinary dangers to both individual privacy and Hungary’s sovereignty due to foreign access to sensitive citizen data.
TPRM report: https://www.rankiteo.com/company/dailynewshungary
"id": "dai5993059110425",
"linkid": "dailynewshungary",
"type": "Breach",
"date": "10/2025",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'customers_affected': '200,000',
'industry': 'Politics/Government',
'location': 'Hungary',
'name': 'Tisza Party',
'type': 'Political Party'}],
'attack_vector': ['External Hacking (alleged Russian actors)',
'Third-Party Data Handling (Ukrainian involvement)'],
'data_breach': {'data_exfiltration': ['Yes (uploaded to LeakBase.la)'],
'file_types_exposed': ['Database Dump'],
'number_of_records_exposed': '200,000 (additional 20,000 in '
'earlier leak)',
'personally_identifiable_information': ['Names',
'Usernames',
'Email Addresses',
'Home Addresses',
'Phone Numbers'],
'sensitivity_of_data': ['High (includes names, addresses, '
'phone numbers, etc.)'],
'type_of_data_compromised': ['Personally Identifiable '
'Information (PII)']},
'date_detected': '2023-10-31',
'date_publicly_disclosed': '2023-10-31',
'description': "A data leak from the Tisza Világ app, used by Hungary's "
'leading opposition party Tisza for its primaries, exposed the '
'personal data of approximately 200,000 users. The leaked '
'database, which includes names, usernames, email addresses, '
'home addresses, phone numbers, and other details, was '
'uploaded to the website LeakBase.la on 31 October. Hungarian '
'Prime Minister Viktor Orbán launched an investigation, citing '
'national security risks due to Ukrainian involvement in '
'handling the data. Opposition leader Péter Magyar accused '
'Russian hackers of orchestrating the breach to intimidate '
'Tisza supporters. The incident is described as one of the '
'biggest political scandals in modern Hungarian history, with '
'concerns over the exposure of sensitive data to a country at '
'war (Ukraine) and potential Russian interference.',
'impact': {'brand_reputation_impact': ["Severe Damage to Tisza Party's "
'Reputation',
'National Political Scandal',
'Public Distrust in Opposition'],
'data_compromised': ['Names',
'Usernames',
'Email Addresses',
'Home Addresses',
'Phone Numbers',
'Other Personal Details'],
'identity_theft_risk': ['High (due to exposure of PII)'],
'legal_liabilities': ['Potential Violations of Hungarian Data '
'Protection Laws',
'Investigation Ordered by Hungarian '
'Government'],
'operational_impact': ['Disruption to Tisza Party Primaries',
"Loss of Trust in Party's Data Security"],
'systems_affected': ['Tisza Világ App Database']},
'initial_access_broker': {'data_sold_on_dark_web': ['Yes (uploaded to '
'LeakBase.la)'],
'high_value_targets': ['Tisza Világ App Database']},
'investigation_status': 'Ongoing (Hungarian Government Investigation)',
'motivation': ['Political Interference (alleged)',
'Instilling Fear Among Opposition Supporters (alleged)',
'National Security Risk (claimed by Hungarian government)'],
'post_incident_analysis': {'root_causes': ['Alleged External Hacking (Russian '
'Actors)',
'Improper Data Handling by Third '
'Parties (Ukrainian Involvement)',
'Inadequate Security Measures for '
'Sensitive Political Data']},
'references': [{'date_accessed': '2023-10-31',
'source': "Hungarian Prime Minister Viktor Orbán's Facebook "
'Post'},
{'date_accessed': '2023-10-31',
'source': 'Statement by Hungarian Minister of Foreign Affairs '
'and Trade Péter Szijjártó'},
{'date_accessed': '2023-10-31',
'source': "Opposition Leader Péter Magyar's Accusations "
'(Media Reports)'},
{'date_accessed': '2023-10-31',
'source': 'LeakBase.la (Database Dump)',
'url': 'https://leakbase.la'}],
'regulatory_compliance': {'legal_actions': ['Government Investigation '
'Ordered'],
'regulations_violated': ['Potential Violations of '
'Hungarian Data Protection '
'Laws (e.g., '
'GDPR-equivalent)']},
'response': {'communication_strategy': ['Public Statements by Viktor Orbán '
'and Péter Szijjártó',
'Facebook Post by Orbán',
'Media Coverage'],
'incident_response_plan_activated': ['Hungarian Government '
'Investigation Launched'],
'law_enforcement_notified': ['Yes (Hungarian National Security '
'Authorities)']},
'stakeholder_advisories': ['Public Warnings by Hungarian Government About '
'National Security Risks'],
'threat_actor': ['Russian Hackers (alleged by Péter Magyar)',
'Ukrainian Individuals (involved in data handling, per '
'Orbán)'],
'title': 'Data Leak from Tisza Világ App Affecting 200,000 Users in Hungary',
'type': ['Data Breach',
'Unauthorized Data Disclosure',
'Cyber Espionage (alleged)']}