HackingHealthcareHealthcareCustomer Data InvolvedEmployee Data InvolvedPHIGovernment IDIdentity (basic)Health (basic)MediumContained

Community Medical Centers

bd_45d13dc4f2513a14 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 10, 2021

Filed

Oct 26, 2021

To disclose

16 days

Affected

Not disclosed

Linked

5 filings

Confidence

64%

Full breach record for Community Medical Centers →2 incidents on file

Community Medical Centers, Inc. detected unusual network activity on October 10, 2021, and proactively shut down systems. An investigation confirmed an unauthorized third party accessed the network, potentially compromising personally identifiable information (including SSNs) and protected health information for patients in San Joaquin, Solano, and Yolo counties. The organization engaged cybersecurity experts, notified law enforcement, and offered identity monitoring services.

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Incident timeline

discovery → filing · 16 days

Oct 10, 2021

Begins

Oct 10, 2021

Discovered

Oct 26, 2021

Filed

vs. sector median

10 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

HHS OCRbd_2a9b84c69baef15f2021-10-26Verified
Maine State AGbd_bc9de75eacdce63f2021-10-29 · +3dVerified
Massachusetts State AGbd_d8e3959accbd3ce62021-10-29 · +3dVerified
Indiana State AGbd_0f48f0d7e257ae0f2021-11-02 · +7dVerified

Name: Community Medical Centers
norm: community medical centers

Name: Community Medical Centers
norm: community medical centers
Industry: Healthcarellm

Discovered: Oct 10, 2021
Breach occurred: Oct 10, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PHIGovernment IDIdentity (basic)Health (basic)
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified law enforcement

During the incident: Shut down many of our systems proactively after detecting unusual activity on the network
Took all systems offline
Conducted an investigation with the assistance of cybersecurity experts
Confirmed the security of our network environment
Notified law enforcement
Offering free identity monitoring services through Kroll
Changes made: Reviewed and altered our policies and procedures relating to the security of our systems and servers
Reviewed and altered how we manage data within our network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 days(16 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 4 states

View merged incident ↗

HHS OCROct 26 · first

California State AGOct 26 · first · this page

Maine State AG+3d

Massachusetts State AG+3d

Indiana State AG+7d

Pattern: first filing Oct 26 (CA), last Nov 2 (IN) — a 7-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://oag.ca.gov/ecrime/databreach/reports/sb24-546879
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 26, 2021
Raw hash: c34ae9ea93b49c23c1b832986c93a30b4e0fabcb5b0ec74b92a211c32ddd23a3

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityCommunity Medical Centers

Victim entityCommunity Medical Centers

Incidentdiscovered Oct 10, 2021

Stated responseShut down many of our systems proactively after detecting unusual activity on the network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov