OAIC investigation — Optus 2022 data breach
civil penalty20 Mar 2025
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.