People search Centene data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 1 Centene-linked incident, with headline counts up to 950K+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Centene breach history matters
Centene operates in Technology. Across indexed rows, recurring themes include mixed intrusion and disclosure events. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2016 — 950k health plan members
Cataloged incident. Centene Corporation, a major health insurer, lost six hard drives containing the personal information of 950,000 individuals. The drives contained names, addresses, dates of birth, Social Security numbers, and health plan information. Exposed categories include Names, addresses, DOB, SSNs, health plan info. BreachHistory cites approximately 950K+ affected records in this row. See the centene2016 and canonical BreachHistory entry.
Patterns and analysis
- Mixed intrusion and disclosure events — appears across multiple Centene 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 Centene company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/centene · Latest: centene2016.
Sources: BreachHistory catalog (1 row for Centene), company and regulator disclosures cited in individual breach records.