HackingHealthcareProfessional ServicesHealthcareStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedPHIIdentity (basic)LowContained

La Perouse, LLC

bd_d4eade49205a11ce · schema v1 · pii pii-v1

Severity

Low

Discovered

Jul 8, 2025

Filed

May 28, 2026

To disclose

46 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

65%

Full breach record for La Perouse, LLC →2 incidents on file

La Perouse LLC, a patient billing services provider, notified the California Attorney General of a data breach affecting patient information. On July 8, 2025, the company discovered unauthorized access to a third-party billing platform account. An attacker copied files containing names and other personal information. The breach window is May 27, 2025, to July 9, 2025. La Perouse engaged forensic investigators, secured its own networks, and implemented additional safeguards with the vendor. Affected individuals are offered 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

California clockDiscovered Jul 8, 2025 → Notified May 28, 2026324d ✗ CA 60-day late46 weeks discovery → filing

Incident timeline

undetected · 42 days

discovery → filing · 46 weeks / 324 days

May 27, 2025

Begins

Jul 8, 2025

Discovered

May 28, 2026

Filed

vs. sector median

+34 wks slower

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

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteeverestbd_3b7be1c9afbd45db2025-08-08 · +293dVerified

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_76f278da7c7bacd32025-09-02 · +268dVerified

Name: La Perouse, LLC
norm: la perouse
Domain: laperouse.us

Name: La Perouse, LLC
norm: la perouse
Domain: laperouse.us
Industry: HealthcarellmProfessional Servicesllm

Discovered: Jul 8, 2025
Breach occurred: May 27, 2025 – Jul 9, 2025
Undetected for: 42 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 28, 2026
Affected individuals: Not disclosed
Data types: PHIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Third party: via Third-party billing platform
Initial access: trusted_relationship

During the incident: Immediately began working to ensure the security of our own network environment
Promptly engaged cybersecurity specialists to conduct a forensic investigation
Moved quickly to promptly investigate and respond to the event
Took steps to confirm the security of our own systems
Worked with our third-party billing platform to ensure that any additional technical safeguards, enhanced security measures, and updated policies and procedures were implemented
Providing you with access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
Changes made: Implemented additional technical safeguards, enhanced security measures, and updated policies and procedures with third-party billing platform
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 46 weeks(324 days from discovery to filing)
Compliance flags: CA 60-day late · 324dLeak >180d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Jul 8, 2025
→ Notified: May 28, 2026
324d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Jul 8, 2025 → Notified: May 28, 2026	324d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

HHS OCRSep 2 · first

California State AG+268d · this page

Pattern: first filing Sep 2 (NV), last May 28 (CA) — a 268-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/sb24-624047
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 28, 2026
Raw hash: 7aba65b2b50dd871b273c15efa92d5f9f312a61401ee3b1b1c47b865250989fb

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entityLa Perouse, LLC

Victim entityLa Perouse, LLC

Incidentdiscovered Jul 8, 2025

Stated responseImmediately began working to ensure the security of our own network environment

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov