People search The Hartford data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 4 The Hartford-linked incidents, with headline counts up to 10K+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why The Hartford breach history matters
The Hartford operates in Technology (United States). Across indexed rows, recurring themes include third-party and supply-chain exposure. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2024 — — Customer data
Cataloged incident. Third-party. Customer data. Exposed categories include Names, emails, addresses, and other PII. No attested victim count is published for this row yet. See the hartford2024 and canonical BreachHistory entry.
2012 — — The Hartford: An employee of Greenplum was robbed of a laptop…
Cataloged incident. An employee of Greenplum was robbed of a laptop during a home burglary on or around June 26. Greenplum is a subsidiary of a hospital vendor known as EMC Corp. The laptop contained the information of 7,461 VNA HealthCare patients and 2,097 Hartford Hospital patients. Patients had their names, Social Security numbers, addresses, dates of birth, marital status, Medicaid and Medicare numbers, medical record numbers, and certain diagnosis and treatment information exposed. Exposed categories include Personal information. BreachHistory cites approximately 10K+ affected records in this row. See the hartford2012 and canonical BreachHistory entry.
2011 — — The Hartford: People who logged into Hartford's server between…
Cataloged incident. People who logged into Hartford's server between February 22 and February 28 are being notified of a possible breach. The firm's Windows servers were hacked and employee, contractor and some customer information may have been exposed by the breach. Social Security numbers, user account logins and passwords, bank account numbers and credit card numbers may have been exposed. Exposed categories include Personal information. BreachHistory cites approximately 300 affected records in this row. See the hartford2011 and canonical BreachHistory entry.
2007 — — The Hartford: Activity from a third party was detected on the website, 526 records
Cataloged incident. Activity from a third party was detected on the website. It is likely that the third party used customer Social Security numbers, dates of birth and annuity contract numbers to access the website. The third party may have been able to reset customer PINs and access customer accounts with this information. Exposed categories include Personal information. BreachHistory cites approximately 526 affected records in this row. See the hartford2007 and canonical BreachHistory entry.
Patterns and analysis
- Third-party and supply-chain exposure — appears across multiple The Hartford 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 The Hartford company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/hartford · Latest: hartford2024.
Sources: BreachHistory catalog (4 rows for The Hartford), company and regulator disclosures cited in individual breach records.