Data breaches in Australia are on the rise, particularly in the financial and healthcare industries. The Australian government is revising its cybersecurity frameworks and policies to strengthen resilience against nation-state threat actors. However, even the Australian Signals Directorate (ASD) admits that proposed security frameworks only raise the baseline of security. To help Australian businesses avoid some of the common malpractices that facilitate data breaches, we’ve compiled a list of some of the biggest data breaches in Australia, ranked by magnitude of impact.