MalwareHealthcareHealthcareRansomwareData ExfiltratedData EncryptedPIIPHIIdentity (basic)LowContained

Crystal Lake Clinic PC

bd_6c9da17559e75e49 · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 26, 2020

Filed

Apr 9, 2021

To disclose

32 weeks

Affected

3state residents only

Linked

4 filings

Confidence

67%

Full breach record for Crystal Lake Clinic PC →

Crystal Lake Clinic PC notified Montana residents of a ransomware incident discovered on August 26, 2020. The malware encrypted files and potentially exfiltrated a limited number of files containing personal and protected health information. The clinic engaged external cybersecurity professionals for investigation.

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Incident timeline

discovery → filing · 32 weeks / 226 days

Aug 26, 2020

Discovered

Apr 9, 2021

Filed

vs. sector median

+20 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

HHS OCRbd_150db8d834a1e5042021-04-09Verified
Massachusetts State AGbd_4ab1567e37fb95a52021-04-09Verified
New Hampshire State AGbd_bf15d88c886b59922021-04-12 · +3dVerified

Name: Crystal Lake Clinic PC
norm: crystal lake clinic

Name: Crystal Lake Clinic PC
norm: crystal lake clinic
Industry: Healthcarellm

Discovered: Aug 26, 2020
Materiality determined: —
Notification sent: —
Affected individuals: 3state-resident count only
Data types: PIIPHIIdentity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Commenced an immediate and thorough investigation
Engaged external cybersecurity professionals experienced in handling these types of incidents
Changes made: Continually evaluate and modify our practices and internal controls to enhance the security and privacy of your personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 32 weeks(226 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

HHS OCRApr 9 · first

Massachusetts State AGApr 9 · first

Montana State AGApr 9 · first · this page

New Hampshire State AG+3d

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://dojmt.gov/wp-content/uploads/Crystal-Notif.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 9, 2021
Raw hash: c5a4f3cfbe29ec2d5b444c15ee458673816e2d08cc79a61951fcc1edde2c9400

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCrystal Lake Clinic PC

Victim entityCrystal Lake Clinic PC

Incidentdiscovered Aug 26, 2020

Stated responseCommenced an immediate and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov