Medibank Private (2025)
1.8M member records compromised in second breach
Every confirmed data breach we've indexed across 5511+ incidents from healthcare, finance, technology, government, retail, and education. Sourced from Verizon DBIR, public disclosure feeds, and major security news outlets. Updated automatically.
1.8M member records compromised in second breach
670K enterprise records compromised in supply chain attack
1,026,468 records exposed — Email addresses, Names, Phone numbers, Physical addresses
95K resident records compromised in phishing attack
450K student records stolen in ransomware
450K patient records stolen in ransomware
780K employee and contractor records stolen
2.3M client and employee records compromised
340K student records compromised in network intrusion
107,041 records exposed — Email addresses, Geographic locations, Names, Phone numbers
240K resident records exposed via compromised water billing and parks reservation systems
890K customer records exposed via compromised pharmacy benefits manager integration
2.8M merchant account records exposed via compromised internal admin tooling API
1,115,061 records exposed — Dates of birth, Email addresses, Genders, Names and 2 more
480K client records from regulatory investigations exposed via ransomware attack
2.4M customer records exposed via insider data theft at Canadian retail banking division
4.3M claims records stolen via compromised Optum claims adjudication system
672K individuals affected — ransomware attack disrupted operations at 74 banks
540K patient records stolen in phishing-initiated breach
890K prepaid card records exposed
11M government benefits claimants exposed via MOVEit exploitation at federal contractor
680K patient records exposed via compromised medical coding vendor system
1.3M citizen records exposed in Service NSW platform breach
1.1M shipping and logistics records stolen in targeted attack