MalwareHealthcareHealthcareRansomwareData ExfiltratedTargetedIdentity (basic)Government IDHealth (basic)PHIMediumContained

Mat-Su Surgical Associates, APC

bd_14c6216d426e017d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 3, 2020

Filed

Aug 25, 2020

To disclose

22 days

Affected

2state residents only

Linked

2 filings

Confidence

64%

Full breach record for Mat-Su Surgical Associates, APC →2 incidents on file

Mat-Su Surgical Associates, APC experienced a ransomware event on March 16, 2020. Glacier Surgical Associates notified patients treated at Mat-Su between Sept 2014 and April 2018 that their PHI, SSN, and DLs may have been accessed. Forensic investigators were hired. Free credit monitoring offered.

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Incident timeline

undetected · 140 days

discovery → filing · 22 days

Mar 16, 2020

Begins

Aug 3, 2020

Discovered

Aug 25, 2020

Filed

vs. sector median

9 wks faster

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

New Hampshire State AGbd_675cf8a1db68f6832020-08-31 · +6dCandidate

Name: Glacier Surgical Associates
norm: glacier surgical associates

Name: Mat-Su Surgical Associates, APC
norm: mat su surgical associates apc
Industry: Healthcarellm

Discovered: Aug 3, 2020
Breach occurred: Mar 16, 2020
Undetected for: 140 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 3, 2020
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1119 Automated Collection
Threat actor: ExternalFinancial

During the incident: Hired independent computer forensic investigators
Offering free identity monitoring and recovery services for 24 months through ID Experts
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 22 days(22 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Montana State AGAug 25 · first · this page

New Hampshire State AG+6d

Pattern: first filing Aug 25 (MT), last Aug 31 (NH) — a 6-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://dojmt.gov/wp-content/uploads/Breach-NotificiationDetails.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 25, 2020
Raw hash: ff8cb16a363f8c7e203a0732c2e93f6ac7a80abe913b2d516cdbed1804ed745d

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityGlacier Surgical Associates

Victim entityMat-Su Surgical Associates, APC

Incidentdiscovered Aug 3, 2020

Stated responseHired independent computer forensic investigators

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov