Notifiable Data Breaches (NDB) scheme dataset 1 July 2025 to 31 Dec 2025 – Data.gov.au

www.data.gov.au • July 7, 2026

Under the Notifiable Data Breaches (NDB) scheme any organisation or agency the Privacy Act 1988 covers must notify affected individuals and the OAIC when a data breach is likely to result in serious harm to an individual whose personal information is involved.

The OAIC receives notifications of eligible data breaches, and encourages compliance with the NDB scheme, including by handling complaints, conducting investigations and taking other regulatory action. The OAIC also offers advice and guidance to regulated organisations, and provides information to the community the operation of the NDB scheme.

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Record Data Breaches Reported in Australia for 2025 In 2025, Australia experienced an unprecedented number of data breach notifications, with the Office of the Australian Information Commissioner (OAIC) receiving 1,205 reports, an 8% increase from 2024. The majority of these breaches (716) were attributed to cyber hacking, with health service providers being the most affected sector, accounting for 225 notifications. Other sectors impacted included financial services, government agencies, and education. The OAIC has introduced a new quick reference guide to assist entities in complying with the Notifiable Data Breaches (NDB) scheme. The rising number of breaches has heightened public concern, with 82% of Australians identifying data breaches as a significant privacy risk. The OAIC continues to encourage compliance and offers guidance to regulated organizations. 2 sources 52

Notifiable Data Breaches (NDB) scheme dataset 1 July 2025 to 31 Dec 2025 – Data.gov.au

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