Latest / California / June 2026
Sierra Management Group
Sierra Management Group notified California AG on Jun 29, 2026 of a data breach, which occurred on Jun 3, 2026. Data exposed: Postal address, Name.
All 2 filings by Sierra Management Group, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)
- Organization
- Sierra Management Group
- Source
- California AG · source record
- Date reported
- Jun 29, 2026
- Date(s) of breach
- n/a
- Residents affected
- Not published by this source
- Data exposed
- Postal address Name
- Notice letter
- Sample notice (PDF)
- Discovered
- Jun 3, 2026, as stated in the letter"The review was completed on or about June 3, 2026, and identified that the affected files may have contained some of your personal information."
- Days to notice
- 26 days from discovery (Jun 3, 2026) to the California record (Jun 29, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
- Offered in the letter
- credit or identity monitoring through Experian
- Third party
- The letter attributes the incident to a vendor or service provider
- First seen by BreachTally
- 2026-10-30 15:27 UTC
Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.
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Other filings by Sierra Management Group
| Organization | State | Reported | Residents affected |
|---|---|---|---|
| Sierra Management Group | US | Jun 7, 2026 | 1,279 |
Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.