HackingHealthcareTechnologyHealthcareData ExfiltratedCustomer Data InvolvedBusiness Associate (HIPAA)Downstream VictimsPHIIdentity (basic)Government IDFinancial accountHealth (basic)MediumContained

Surgeons Choice Medical Center

bd_eac49aabb3a023ff · schema v1 · pii pii-v2

Severity

Medium

Discovered

Jul 9, 2026

Filed

Aug 21, 2026

To disclose

6 weeks

Affected

3state residents only

Linked

3 filings

Confidence

69%

Aesto LLC d/b/a Aesto Health, a healthcare data migration and archiving service provider, experienced a network security incident impacting its AWS infrastructure. An unauthorized actor accessed and copied protected health information (PHI) and personally identifiable information (PII), including names, medical record numbers, Social Security numbers, and financial account numbers, between December 2 and December 18, 2025. The incident was discovered on December 18, 2025. Approximately 3 New Hampshire residents were affected. Aesto engaged forensic specialists, contained the incident, and notified affected individuals and regulators.

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Incident timeline

undetected · 219 days

discovery → filing · 6 weeks / 43 days

Dec 2, 2025

Begins

Jul 9, 2026

Discovered

Aug 21, 2026

Filed

vs. sector median

3 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Vermont State AGbd_735679d135123d422026-08-21Verified
Massachusetts State AGbd_1b447ebd991ab5882026-08-01 · +20dCandidate

Name: Surgeons Choice Medical Center
norm: surgeons choice medical center

Name: Surgeons Choice Medical Center
norm: surgeons choice medical center
Industry: HealthcarellmTechnologyllm

Discovered: Jul 9, 2026
Breach occurred: Dec 2, 2025 – Dec 18, 2025
Undetected for: 219 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 21, 2026
Affected individuals: 3state-resident count only
Data types: PHIIdentity (basic)Government IDFinancial accountHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Filed notice with New Hampshire Office of Attorney General
Third party: via Aesto LLC

During the incident: Commenced an investigation into the full nature and scope of the incident
Worked closely with third-party forensic specialists
Contained the incident
Notified Covered Entity clients whose patient information was included in the files potentially accessed or acquired by the unauthorized party
Posted notice of this event on its website
Provided notice to major statewide media in New Hampshire
Began mailing notice letters to affected New Hampshire residents
Provided access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Changes made: Continually evaluates and modifies practices and internal controls to enhance the security and privacy of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(43 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 · 3 states

View merged incident ↗

Massachusetts State AGAug 1 · first

Vermont State AG+20d

New Hampshire State AG+20d · this page

Pattern: first filing Aug 1 (MA), last Aug 21 (NH) — a 20-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://mm.nh.gov/files/uploads/doj/remote-docs/surgeons-choice-medical-center-20260821.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 21, 2026
Raw hash: 6594776887d5503b7e6026fae7e7a1095c28f48c6b7fb6af693c506eb5bf4572

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entitySurgeons Choice Medical Center

Victim entitySurgeons Choice Medical Center

Incidentdiscovered Jul 9, 2026

Stated responseCommenced an investigation into the full nature and scope of the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov