Biggest Data Breaches in Europe [Updated 2025] | UpGuard

This report catalogs the top 21 European cyber incidents and data breaches, summarizing dates, scope, impacts, and observed methods—ranging from supply-chain and web skimming (British Airways) and large-scale ransomware (HSE, Conti; SEPA) to BEC scams (Norfund), SQL injection and unpatched-vulnerability exploits (Bulgarian NRA, Travelex), and a high-value blockchain token exploit (Binance). It highlights affected organizations, estimated scale of data loss or financial impact, and regulatory or remediation outcomes.