AccidentalGovernmentGovernmentMisdeliveryCustomer Data InvolvedPIIIdentity (basic)LowContained

County of Stanislaus

bd_1e18886e01c0b15d · schema v1 · pii pii-v2

Severity

Low

Discovered

Jul 28, 2025

Filed

Oct 1, 2025

To disclose

—

Affected

Not disclosed

Linked

6 filings

Confidence

65%

Full breach record for County of Stanislaus →

Stanislaus County (CA) disclosed an inadvertent email disclosure of personal information on or about July 28, 2025. A county employee sent a file containing sensitive data to a limited number of individuals. The incident involved PII (identity_basic). The County offered complimentary Experian IdentityWorks monitoring. No evidence of fraud was found. The incident is contained.

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Incident timeline

Jul 28, 2025

Begins

Jul 28, 2025

Discovered

Oct 1, 2025

Filed

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Montana State AGbd_1c727528ee5ee2ab2025-10-01Candidate
Indiana State AGbd_a0f581e847ea15442025-10-01Verified
California State AGbd_f61d31c6dd3aa9fa2025-10-01Verified
Massachusetts State AGbd_fce2d1a0136ec7b02025-10-01Verified

Show 1 more filing ↓

Vermont State AGbd_ff2316c528677cba2025-10-01Verified

Name: County of Stanislaus
norm: county of stanislaus

Name: County of Stanislaus
norm: county of stanislaus
Industry: Governmentllm

Discovered: Jul 28, 2025
Breach occurred: Jul 28, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 28, 2025
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unknown
MITRE ATT&CK: T1566 Phishing
Threat actor: Internal

During the incident: Immediately took steps to mitigate the issue
Retraining our staff to prevent similar incidents from occurring in the future
Working with technology support to safeguard against future inadvertent disclosures
Offering complimentary access to Experian IdentityWorks
Changes made: Retraining our staff to prevent similar incidents from occurring in the future
Working with technology support to safeguard against future inadvertent disclosures
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Montana State AGOct 1 · first

Indiana State AGOct 1 · first

California State AGOct 1 · first

Massachusetts State AGOct 1 · first

Vermont State AGOct 1 · first

Nebraska State AGOct 1 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://nebraska.gov/ago/data-breach/documents/86748751-309a-4d10-bf1d-cf47bd77de11.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 1, 2025
Raw hash: fed947d2325d46fbdc37c74da92142d31931305b36ac349d1fe5042104918cab

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityCounty of Stanislaus

Victim entityCounty of Stanislaus

Incidentdiscovered Jul 28, 2025

Stated responseImmediately took steps to mitigate the issue

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov