Data Breaches in Australia
38 data breaches have affected organizations headquartered in Australia. This geographic view helps security professionals understand regional threat patterns and compliance requirements. Geographic isolation and time zone differences can complicate incident response coordination.
Organizations operating in Australia must navigate specific regulatory requirements for breach notification and data protection. The Notifiable Data Breaches scheme under the Privacy Act requires disclosure to the OAIC. Understanding the breach landscape in your jurisdiction helps inform incident response planning and regulatory compliance strategies.
Compare breach activity across regions to understand where threats are concentrated. View breaches in the United States, United Kingdom, or explore by industry and incident type. For current activity, see the latest breaches worldwide.
| Date | Company | Type | Industry | Country | Severity | Source |
|---|---|---|---|---|---|---|
| Nov 4, 2025 | Fewer | unauthorized access | - | Australia | 5/10 | View |
| Nov 2, 2025 | Victims | unauthorized access | Healthcare | Australia | 5/10 | View |
| Oct 21, 2025 | Clinical Labs Fined AU$5.8 | unauthorized access | Healthcare | Australia | 5/10 | View |
| Oct 17, 2025 | WA's Biggest | unauthorized access | - | Australia | 5/10 | View |
| Oct 14, 2025 | Authorities | unauthorized access | - | Australia | 5/10 | View |
| Oct 13, 2025 | Salesforce-Linked | supply chain | Technology | Australia | 7/10 | View |
| Oct 13, 2025 | Qantas Customer Records Surface | unauthorized access | - | Australia | 5/10 | View |
| Sep 29, 2025 | Clinical Labs | unauthorized access | Financial Services | Australia | 7/10 | View |
| Sep 12, 2025 | SonicWall | ransomware | - | Australia | 6/10 | View |
| Aug 25, 2025 | Proactive | unauthorized access | - | Australia | 5/10 | View |
| Aug 19, 2025 | Internet | unauthorized access | - | Australia | 6/10 | View |
| Aug 8, 2025 | Optus | unauthorized access | - | Australia | 5/10 | View |
| Jul 27, 2025 | Trumpet | unauthorized access | - | Australia | 5/10 | View |
| Jul 23, 2025 | Louis Vuitton | unauthorized access | - | Australia | 5/10 | View |
| Jul 23, 2025 | Genea IVF | unauthorized access | Healthcare | Australia | 5/10 | View |
| May 12, 2025 | Australia | unauthorized access | - | Australia | 5/10 | View |
| Apr 4, 2025 | Australian Super Funds | unauthorized access | - | Australia | 5/10 | View |
| Mar 28, 2025 | Nine Audits External Data Security After | unauthorized access | - | Australia | 5/10 | View |
| Feb 19, 2025 | IVF Giant Investigates | unauthorized access | - | Australia | 5/10 | View |
| Dec 22, 2024 | Loss | unauthorized access | - | Australia | 5/10 | View |
| Nov 11, 2024 | Services | unauthorized access | - | Australia | 5/10 | View |
| Oct 1, 2024 | NSW | unauthorized access | - | Australia | 5/10 | View |
| Sep 30, 2024 | Services Australia | unauthorized access | Government | Australia | 5/10 | View |
| Sep 23, 2024 | OAIC | unauthorized access | - | Australia | 5/10 | View |
| Aug 6, 2024 | Early Settler | unauthorized access | - | Australia | 5/10 | View |
| Jul 4, 2024 | Australian Mining Software Firm Opaxe | unauthorized access | Technology | Australia | 5/10 | View |
| Jul 3, 2024 | Leak | unauthorized access | Healthcare | Australia | 5/10 | View |
| Jun 28, 2024 | Ticketek | unauthorized access | - | Australia | 8/10 | View |
| Jun 24, 2024 | Optus | unknown | - | Australia | 5/10 | View |
| Jun 24, 2024 | TEG | unauthorized access | - | Australia | 5/10 | View |
| Jun 5, 2024 | MediSecure | unauthorized access | - | Australia | 5/10 | View |
| Jun 1, 2024 | Ticketek Customer Details | unauthorized access | - | Australia | 5/10 | View |
| May 24, 2024 | Optus | unauthorized access | - | Australia | 5/10 | View |
| May 20, 2024 | MediSecure | ransomware | Healthcare | Australia | 6/10 | View |
| May 19, 2024 | unauthorized access | Technology | Australia | 5/10 | View | |
| May 10, 2024 | Latitude | unauthorized access | - | Australia | 8/10 | View |
| May 10, 2024 | Firstmac Customer Details | unauthorized access | - | Australia | 5/10 | View |
| Apr 10, 2024 | Optus | unauthorized access | - | Australia | 5/10 | View |
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