OAIC investigation — Optus 2022 data breach
In plain English
The OAIC investigated Optus’s 2022 data breach. This breach affected customers and involved personal information.
The Office of the Australian Information Commissioner (OAIC) investigated Singtel Optus Pty Ltd regarding a 2022 data breach. The breach involved customer personal information. The OAIC’s decision type was a civil penalty. Further details about the conduct and outcome are not available in the source.
AI-assisted summary, grounded in the source link below. Generated 2026-05-23 via gemma3:12b.
Respondent
Singtel Optus Pty Ltd
Facts
September 2022 Optus breach exposed ~10M customer records. OAIC alleges APP 11 failures + delayed notification.
Outcome
Civil penalty proceedings underway — major test case under post-2022 penalty regime.
Read the source
https://oaic.gov.au/news/media-centre/Rules Mate links to the regulator's own publication. We do not republish full decision text. Always verify the latest status against the source before acting.