HackingGovernmentGovernmentVulnerability ExploitSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

County of Santa Clara

bd_5cd953cc0316dc79 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 31, 2023

Filed

Aug 10, 2023

To disclose

10 weeks

Affected

5state residents only

Linked

4 filings

Confidence

66%

Full breach record for County of Santa Clara →

County of Santa Clara notified NH AG of a third-party vendor (PBI) breach involving the MOVEit Transfer vulnerability. Unauthorized access occurred May 29-30, 2023, resulting in data exfiltration. 5 NH residents affected. Notification sent Aug 9, 2023, offering credit monitoring.

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Incident timeline

undetected · 2 days

discovery → filing · 10 weeks / 71 days

May 29, 2023

Begins

May 31, 2023

Discovered

Aug 10, 2023

Filed

vs. sector median

1 wks faster

This filing is one of 4 about the same incident.View merged incident

Part of Pension Benefit Information, LLC supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_8b3a3010149d950f2023-08-10Verified
Indiana State AGbd_d901a68a2ecc162b2023-08-09 · +1dVerified
Massachusetts State AGbd_f3a3f448fb59518a2023-08-09 · +1dVerified

Name: County of Santa Clara
norm: county of santa clara

Name: County of Santa Clara
norm: county of santa clara
Industry: Governmentllm

Discovered: May 31, 2023
Breach occurred: May 29, 2023 – May 30, 2023
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 9, 2023
Affected individuals: 5state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Third party: via Pension Benefit Information, LLC
Initial access: exploit_public_facing

During the incident: Worked with PBI to investigate the incident
Notifying potentially involved individuals
Providing free credit monitoring services
Patch servers
Investigate
Assess the security of our systems
Notify potentially affected customers and individuals associated with those customers
Changes made: Reviewing and enhancing our information security policies and procedures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(71 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGAug 9 · first

Massachusetts State AGAug 9 · first

Maine State AG+1d

New Hampshire State AG+1d · 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://mm.nh.gov/files/uploads/doj/remote-docs/county-santa-clara-california-20230810.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 10, 2023
Raw hash: 116d564d442627376a478feb745c0cc61b9de039dca3d3bbd4bb9091df83a057

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCounty of Santa Clara

Victim entityCounty of Santa Clara

Incidentdiscovered May 31, 2023

Stated responseWorked with PBI to investigate the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov