Biggest Data Breaches in Europe [Updated 2024] | UpGuard

This report summarizes 21 major European cybersecurity incidents — primarily large-scale data breaches and ransomware attacks — describing affected organizations (airlines, banks, governments, healthcare, telecoms, insurers, crypto exchanges), attack methods (JavaScript supply-chain skimming, SQL injection, unpatched VPN exploits, phishing/BEC, Conti/Sodinokibi ransomware), impacts (millions of records, multi-GB/ TB data theft, multi-million euro/dollar losses and fines), and post-incident outcomes (restoration efforts, fines, ransom payments, and investigations).