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.

Geographic scope: Breaches are attributed based on the headquarters location of the affected organization, not the location of data subjects or attackers.
38
Breaches in Australia
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 Google 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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