HackingHealthcareHealthcareData ExfiltratedEmployee Data InvolvedCustomer Data InvolvedPIIPHIIdentity (basic)Health (basic)EmploymentLowContained

Rehabilitation Hospital of Southern California

bd_5abda10ebf43b3e6 · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 1, 2024

Filed

Mar 29, 2024

To disclose

8 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

66%

Full breach record for Rehabilitation Hospital of Southern California →

Rehabilitation Hospital of Southern California reported that an unauthorized party gained access to its IT network between January 16 and February 4, 2024. The incident was discovered on February 1, 2024. The breach affected current and former employees as well as patients, potentially exposing names and other personal/health information. The hospital secured systems, engaged a third-party forensic firm, and notified law enforcement. Affected individuals are offered one year of identity theft protection.

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Incident timeline

undetected · 16 days

discovery → filing · 8 weeks / 57 days

Jan 16, 2024

Begins

Feb 1, 2024

Discovered

Mar 29, 2024

Filed

vs. sector median

3 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Montana State AGbd_09c0ebe864b1d0822024-03-29Verified
HHS OCRbd_e140ad5e90fd98f52024-03-29Verified

Name: Rehabilitation Hospital of Southern California
norm: rehabilitation hospital of southern california

Name: Rehabilitation Hospital of Southern California
norm: rehabilitation hospital of southern california
Industry: Healthcarellm

Discovered: Feb 1, 2024
Breach occurred: Jan 16, 2024 – Feb 4, 2024
Undetected for: 16 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIPHIIdentity (basic)Health (basic)Employment
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Secured and isolated our IT systems
Commenced an investigation with assistance from a third-party cybersecurity firm
Been in communication with law enforcement
Changes made: Implemented additional safeguards and technical security measures to further protect and monitor our systems
Offering a complimentary one-year membership to Identity Defense Complete, which includes credit monitoring and fraud alerts
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(57 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 2 states

View merged incident ↗

Montana State AGMar 29 · first

HHS OCRMar 29 · first

California State AGMar 29 · 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://oag.ca.gov/ecrime/databreach/reports/sb24-583286
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 29, 2024
Raw hash: 63702c889ef352349b96a5acfd9adde52adc621204afba7129fe2d5fdd815766

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityRehabilitation Hospital of Southern California

Victim entityRehabilitation Hospital of Southern California

Incidentdiscovered Feb 1, 2024

Stated responseSecured and isolated our IT systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov