HackingHealthcareHealthcareStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedRansom DemandedCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)Financial accountMediumContained

Health Center Partners of Southern California

bd_342dbf40b3d168a6 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 3, 2020

Filed

Apr 22, 2021

To disclose

20 weeks

Affected

6state residents only

Linked

6 filings

Confidence

66%

Full breach record for Health Center Partners of Southern California →2 incidents on file

Health Center Partners of Southern California (HCP) notified the NH DOJ of a data security incident involving its IT provider, Netgain Technology. An unauthorized third party accessed Netgain's environment in late Sept 2020, exfiltrating files containing patient data (PII, PHI, SSN, financial) between Oct 22 and Dec 3, 2020. Netgain paid a ransom for assurances of data deletion. HCP engaged forensic experts, notified the FBI, and mailed notices to 6 NH residents starting April 8, 2021.

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Incident timeline

undetected · 93 days

discovery → filing · 20 weeks / 140 days

Sep 1, 2020

Begins

Dec 3, 2020

Discovered

Apr 22, 2021

Filed

vs. sector median

+8 wks slower

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

Part of Netgain Networks supply-chain incident (2021) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Massachusetts State AGbd_59d32f5e66b8b8df2021-04-22Verified
California State AGbd_435d5512e8a6d8a02021-04-21 · +1dVerified
HHS OCRbd_e46d5b364a3336482021-04-09 · +13dVerified
Montana State AGbd_061adccd52816a0a2021-04-08 · +14dVerified

Show 1 more filing ↓up to 14d gap

Indiana State AGbd_50ad05ee6a4a06f62021-04-08 · +14dVerified

Name: Health Center Partners of Southern California
norm: health center partners of southern california

Name: Health Center Partners of Southern California
norm: health center partners of southern california
Industry: Healthcarellm

Discovered: Dec 3, 2020
Breach occurred: Sep 1, 2020 – Dec 3, 2020
Undetected for: 93 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 8, 2021
Affected individuals: 6state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Financial account
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Department of Justice Consumer Protection Bureau
Third party: via Netgain Technology, LLC
Initial access: supply_chain

During the incident: Engaged outside cybersecurity experts to conduct an investigation and to assist in its mitigation, restoration, and remediation efforts
Brought all systems offline as a mitigation measure
Reported the incident to law enforcement agencies, including the Federal Bureau of Investigation
Notified the affected individuals about the incident via USPS First Class Mail
Issued a press release to prominent media outlets
Changes made: Implemented additional measures to enhance the security of its digital environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 weeks(140 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 5 states

View merged incident ↗

Montana State AGApr 8 · first

Indiana State AGApr 8 · first

HHS OCR+1d

California State AG+13d

Massachusetts State AG+14d

New Hampshire State AG+14d · this page

Pattern: first filing Apr 8 (MT), last Apr 22 (NH) — a 14-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/health-partners-southern-california-20210422.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 22, 2021
Raw hash: b7af468b07c0c6c50037a21ffead1e2feb5cdcb17e36301feb541025a7436189

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityHealth Center Partners of Southern California

Victim entityHealth Center Partners of Southern California

Incidentdiscovered Dec 3, 2020

Stated responseEngaged outside cybersecurity experts to conduct an investigation and to assist in its mitigation, restoration, and remediation efforts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov