All Breaches
MediSecure Data Breach
In May 2024, MediSecure, a former Australian national electronic prescription service provider, disclosed a major ransomware attack and data breach.
12.9 Million
Affected People
8
Data Types
Critical
Severity
Oct 27, 2026
Last updated
Exposed Data Types
3 sensitive8- Health insurance identification numbers
- Patient identification numbers
- Prescription information
- Names
- Dates of birth
- Physical addresses
- Phone numbers
- Loyalty program details
About This Breach
Approximately 12.9 million individuals had their Medicare card numbers, healthcare identifiers, prescription histories, and contact information exposed.
Verification and editorial method
LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.
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