Yearly Breach Reports Summary 2023
This is a listing of all publicly disclosed Australian cyber-attacks and data breaches from 2023.
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Incident: Ascot Vale Health Group targeted by Global ransomware group | CyberDaily.au
Australian Medical Ransomware Attack, 06 Jun 2025: Victorian based Ascot Vale Health Group targeted by Global ransomware group. Global ransomware group has so far not listed how much data it has allegedly stolen or what kind of data may have been compromised.
Incident: RISE Racing confirms Sarcoma ransomware attack | CyberDaily.au
Australian Racing Industry Ransomware Attack, 05 Jun 2025: Victorian based RISE Racing confirms Sarcoma ransomware attack. Reports indicate that 1.6GB of sensitive data was stolen, including: Banking details, financial records, participant personal information and operational data related to the racing industry.
Incident: MKA Accountants confirms Qilin ransomware attack | CyberDaily.au
Australian Accounting Firm Ransomware Attack, 16 May 2025: Victorian MKA Accountants confirms Qilin ransomware attack. Qilin published 12 documents as part of its leak post, including internal correspondence, financial statements, and insurance information
Incident: NSW court website involved in major data breach, 9,000 documents downloaded | ABC News (Australia)
Australian Cyber Incident – Court Data Breach, 26 March 2025: NSW court website involved in major data breach, 9,000 documents downloaded. Man charged in connection with court document data breach.
Incident: Brydens Lawyers suffers alleged 600GB data breach following ransomware attack | cyberdaily.au
Incident – Law Firm Ransomware Attack, 13 March 2025: Prominent Sydney law firm Brydens Lawyers reveals a serious cyber incident in the wake of a February intrusion into its network. More than 600 gigabytes of data – including case, client, and staff data – was stolen in the incident.
NZ Incident: Kiwi car dealership Tristram European listed by DragonForce ransomware | Cyberdaily.au
NZ Incident – Ransomware Attack, 28 February 2025: DragonForce Ransomware Targets Kiwi Car Dealership Tristram European. The attackers claim to have stolen over 30 gigabytes of sensitive data, including customer information and financial records.
Incident: Australian IVF provider Genea in cyber incident | iTnews
Updated Incident – Medical Data Breach, 19 February 2025: Australian IVF provider Genea in cyber incident. Genea patients frustrated by lack of communication amid data breach.
Incident: Australian National University investigating alleged cyber attack | Cyberdaily.au
Incident – University Ransomware Attack, 16 February 2025: Australian National University investigating alleged cyber attack by FSociety ransomware group. No ransom amount was given; however, society is threatening to publish the data within seven days.
NZ Incident: KillSec claims breach of NZ medical supplier | Cyberdaily.au
NZ Incident – Medical Ransomware Attack, 13 February 2025: KillSec claims ransomware attack on New Zealand based Obex Medical. While the exact details of the breach remain unclear, this latest incident highlights the persistent threat of ransomware groups, particularly those focused on industries like healthcare.
Update AU Incident: The University of Notre Dame Australia confirms cyber incident | Cyberdaily.au
Updated AU Incident – Education Cyber Attack, 04 February 2025: The University of Notre Dame Australia in Western Australia confirms cyber incident. Claims are that 62.3 Gb of data was exfiltrated. Containing employee and student contact data, medical documents, confidential agreements and licenses. Problems with enrolling and accessing class timetables, weeks after a cyber attack
Australian Info & Cyber Security News
Two-thirds of Australians are sharing key information that makes them easy targets for scammers and cyber criminals. The new research from the Department of Home Affairs also found more than [...]
A 45-year-old New South Wales Treasury employee has been arrested and charged with accessing and downloading over 5,500 sensitive government documents containing confidential, commercial and financial information across multiple NSW [...]
Warning Anthropic's Mythos could pose cyber risk to banks and critical infrastructure | The Business
Australian banks, power providers and infrastructure firms do not have access to test their systems against a powerful new AI cybersecurity risk, Anthropic's Mythos. Anthropic has claimed Claude Mythos is [...]
A newly published Australian Army Research Centre paper has highlighted the need for Australia to establish an Australian national cyber reserve … [...]
Australian investment firm Generation Life says there is no evidence of any unauthorised transaction, but is investigating a potential data breach. • … [...]
A determination issued today by the Privacy Commissioner finds that the 2Apply rental technology platform, operated by InspectRealEstate (IRE), … [...]
In brief Coordinated cyber-attacks formed an integral part of the lead-up to and the opening phase of the 2026 Iran war, operating in tandem with … [...]
The final report on the independent review into the Security of Critical Infrastructure Act 2018 (Cth) (SOCI Act), conducted by Dr Jill Slay AM, was … [...]
The Australian Defence Force has continued efforts to strengthen its response and readiness in changing information environments by conducting a … [...]
The Sri Lankan government has confirmed that a cyber attack on its finance ministry has led to several million dollars being stolen by hackers, funds … [...]
Employee identity documents and Melbourne crane collapse data were posted to the dark web by SafePay ransomware gang. • Wed, 22 Apr 2026 • … [...]
Information Security Memes
Security quotes and wisdoms
- Quotes
Quote: John Chambers “There are two types of companies….”
Quotes and Memes: "There are two types of companies: those who have been hacked, and those who don’t yet know they have been hacked" - John Chambers
