Home / Breach statistics Australia, OAIC 1 Measure Data breach notifications 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Data breach notifications 1 Period January to June 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Data breach notifications 1 Period Calendar year 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Notifications from malicious or criminal attacks 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Notifications from human error 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Notifications from health service providers 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Notifications from Australian Government agencies 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Notifications from finance, including superannuation 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Notifications from legal, accounting and management services 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Notifications from retail 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Breaches notified to the OAIC in under 10 days 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 Australia, OAIC 1 Measure Breaches identified in under 30 days 1 Period July to December 2024 1 Publication NDB Report, 13 May 2025 1 United States, HHS OCR 2 Measure Reports of breaches affecting 500 or more 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Individuals affected by breaches of 500 or more 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Large breaches from hacking or IT incidents 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Large breaches with network server as location 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Large breaches reported by health care providers 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Large breaches reported by business associates 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Large breaches reported by health plans 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Reports of breaches affecting fewer than 500 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Individuals affected by breaches under 500 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Breach investigations completed 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 2 Measure Investigations resolved with agreements, settlements or penalties 2 Period Calendar year 2024 2 Publication Annual Report to Congress for 2024 2 United States, HHS OCR 6 Measure People affected by the Change Healthcare breach, as reported by the company 6 Period As of 31 July 2025 6 Publication HHS FAQ, content last reviewed 13 August 2025 6 Ireland, DPC 3 Measure Valid breach notifications received 3 Period Calendar year 2025 3 Publication Annual Report 2025 notice, 30 June 2026 3 Ireland, DPC 3 Measure Breach notifications concluded by year end 3 Period Calendar year 2025 3 Publication Annual Report 2025 notice, 30 June 2026 3 Ireland, DPC 3 Measure New cases from individuals 3 Period Calendar year 2025 3 Publication Annual Report 2025 notice, 30 June 2026 3 Ireland, DPC 3 Period Calendar year 2025 3 Publication Annual Report 2025 notice, 30 June 2026 3 Ireland, DPC 3 Measure Valid cross-border complaints concluded as lead authority 3 Period Calendar year 2025 3 Publication Annual Report 2025 notice, 30 June 2026 3 Ireland, DPC 3 Measure Large-scale inquiries finalised 3 Period Calendar year 2025 3 Publication Annual Report 2025 notice, 30 June 2026 3 Ireland, DPC 3 Measure Administrative fines imposed 3 Period Calendar year 2025 3 Publication Annual Report 2025 notice, 30 June 2026 3 Canada, OPC 4 Measure Private-sector breach reports under PIPEDA 4 Period Fiscal year 2024-25 4 Publication Annual Report to Parliament 2024-2025, 5 June 2025 4 Canada, OPC 4 Measure Public-sector breach reports under the Privacy Act 4 Period Fiscal year 2024-25 4 Publication Annual Report to Parliament 2024-2025, 5 June 2025 4 Canada, OPC 4 Measure Individuals affected by Privacy Act breaches 4 Period Fiscal year 2024-25 4 Publication Annual Report to Parliament 2024-2025, 5 June 2025 4 Canada, OPC 4 Measure Canadian accounts affected by PIPEDA breaches 4 Period Fiscal year 2024-25 4 Publication Annual Report to Parliament 2024-2025, 5 June 2025 4 Canada, OPC 4 Measure PIPEDA complaints accepted 4 Period Fiscal year 2024-25 4 Publication Annual Report to Parliament 2024-2025, 5 June 2025 4 Canada, OPC 4 Measure Privacy Act complaints accepted 4 Period Fiscal year 2024-25 4 Publication Annual Report to Parliament 2024-2025, 5 June 2025 4 United Kingdom, DSIT 5 Measure Businesses identifying any breach or attack 5 Period 12 months before interview, fieldwork August to December 2024 5 Publication Cyber security breaches survey 2025, 10 April 2025 5 United Kingdom, DSIT 5 Measure Charities identifying any breach or attack 5 Period 12 months before interview, fieldwork August to December 2024 5 Publication Cyber security breaches survey 2025, 10 April 2025 5 United Kingdom, DSIT 5 Measure Medium businesses identifying any breach or attack 5 Period 12 months before interview, fieldwork August to December 2024 5 Publication Cyber security breaches survey 2025, 10 April 2025 5 United Kingdom, DSIT 5 Measure Large businesses identifying any breach or attack 5 Period 12 months before interview, fieldwork August to December 2024 5 Publication Cyber security breaches survey 2025, 10 April 2025 5 United Kingdom, DSIT 5 Measure Businesses with a breach that experienced phishing 5 Period 12 months before interview, fieldwork August to December 2024 5 Publication Cyber security breaches survey 2025, 10 April 2025 5 United Kingdom, DSIT 5 Measure Businesses that were victims of cyber crime 5 Period 12 months before interview, fieldwork August to December 2024 5 Publication Cyber security breaches survey 2025, 10 April 2025 5 United Kingdom, DSIT 5 Measure Average cost of the most disruptive breach, businesses 5 Period 12 months before interview, fieldwork August to December 2024 5 Publication Cyber security breaches survey 2025, 10 April 2025 5 United Kingdom, DSIT 5 Measure Average cost of the most disruptive breach, charities 5 Period 12 months before interview, fieldwork August to December 2024 5 Publication Cyber security breaches survey 2025, 10 April 2025 5 Nothing matches. Clear the search or pick another filter.
Notes The HHS breach portal lists breaches of 500 or more people 7 . The figures above come from the yearly report, not the live list 2 . The UK survey figures are survey estimates, and the cost figures are self-reported 5 . The Change Healthcare figure is the number reported by the company to HHS 6 . The OAIC prints two totals for 2024. Its NDB report of 13 May 2025 gives 1,113 1 . Its release of 6 July 2026 gives 1,112 8 . Rules and charges change. Check the official source linked on this page before you pay or travel. Spotted an error? Email hello@breachandfinetracker.com .