People search Optus data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 2 Optus-linked incidents, with headline counts up to 11M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Optus breach history matters
Optus operates in Technology (Australia). Across indexed rows, recurring themes include cloud and database misconfiguration. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2022 — 11M customers
Cataloged incident. Australia's second-largest telecom. Current and former customer data accessed via API misconfiguration. Names, dates of birth, phone numbers, email addresses, ID document numbers. Driver's license and passport numbers for some. Exposed categories include Names, DOB, phone numbers, email, ID document numbers. BreachHistory cites approximately 11M+ affected records in this row. See the optus2022 and canonical BreachHistory entry.
2022 — — Optus: Hacking, 9,800,000 records
Cataloged incident. Data breach reported. telecommunications organization. Method: hacked. Source: Wikipedia List of data breaches. Exposed categories include Personal and demographic data. BreachHistory cites approximately 9.8M+ affected records in this row. See the optus2022-9800000-wiki2 and canonical BreachHistory entry.
Patterns and analysis
- Cloud and database misconfiguration — appears across multiple Optus catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Review OAuth app permissions and revoke unused third-party integrations.
- Step 5: Bookmark the Optus company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/optus · Latest: optus2022.
Sources: BreachHistory catalog (2 rows for Optus), company and regulator disclosures cited in individual breach records.