MalwareHealthcareHealthcareRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedPIIIdentity (basic)Government IDHealth (basic)PHIHighContained

Lakeside Pediatrics & Adolescent Medicine, PLLC

bd_061057b0904036bb · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 1, 2024

Filed

Feb 27, 2026

To disclose

16 months

Affected

1,314state residents only

Linked

2 filings

Confidence

70%

Full breach record for Lakeside Pediatrics & Adolescent Medicine, PLLC →

Lakeside Pediatrics & Adolescent Medicine, PLLC reported a ransomware cyberattack affecting 1,314 Washington residents. Unauthorized access occurred between Oct 15 and Nov 1, 2024. The incident was discovered on Nov 1, 2024. Patient PII, PHI, and government IDs were exposed. Credit monitoring offered.

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Washington clock✗ WA AG >90d16 months discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 17 days

discovery → filing · 16 months / 483 days

Oct 15, 2024

Begins

Nov 1, 2024

Discovered

Feb 27, 2026

Filed

vs. sector median

+56 wks slower

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_d6fd8b42cbee549e2026-02-27Verified

Name: Lakeside Pediatrics & Adolescent Medicine, PLLC
norm: lakeside pediatrics adolescent medicine

Name: Lakeside Pediatrics & Adolescent Medicine, PLLC
norm: lakeside pediatrics adolescent medicine
Industry: Healthcarellm

Discovered: Nov 1, 2024
Breach occurred: Oct 15, 2024 – Nov 1, 2024
Undetected for: 17 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 27, 2026
Affected individuals: 1,314state-resident count only
Data types: PIIIdentity (basic)Government IDHealth (basic)PHI
Data elements: NameSocial Security numberDate of birthHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Contained the incident
Commenced an immediate and thorough investigation
Engaged leading cybersecurity experts to identify what personal information, if any, was involved
Offering access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Changes made: Continually evaluate and modify practices and internal controls to enhance the security and privacy of your information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 months(483 days from discovery to filing)
Compliance flags: WA AG >90d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

HHS OCRFeb 27 · first

Washington State AGFeb 27 · 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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA36848.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 27, 2026
Raw hash: 3037de56500766e595f5b9d34ff73a2188fab9c832173064987155ca7487a40d

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityLakeside Pediatrics & Adolescent Medicine, PLLC

Victim entityLakeside Pediatrics & Adolescent Medicine, PLLC

Incidentdiscovered Nov 1, 2024

Stated responseContained the incident

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com