HackingHealthcareTechnologyHealthcareSupply Chain (3P Vendor)Business Associate (HIPAA)Customer Data InvolvedData ExfiltratedPHIIdentity (basic)Government IDHealth (basic)Financial accountMediumContained

G.I. Medicine Associates, P.C.

bd_c955e814f8445d26 · schema v1 · pii pii-v2

Severity

Medium

Discovered

Jun 26, 2026

Filed

Sep 8, 2026

To disclose

11 weeks

Affected

3state residents only

Linked

3 filings

Confidence

69%

Full breach record for G.I. Medicine Associates, P.C. →2 incidents on file

Aesto LLC d/b/a Aesto Health, a healthcare data migration and archiving vendor, experienced a network security incident impacting its AWS infrastructure. Unauthorized access occurred between December 2 and December 18, 2025. Aesto detected the issue on December 18, 2025. Forensic investigation confirmed that protected health information, including names, addresses, dates of birth, medical record numbers, and Social Security numbers, may have been accessed or acquired. G.I. Medicine Associates, P.C., a covered entity client, notified approximately 3 New Hampshire residents. Aesto engaged cybersecurity experts, contained the incident, notified the FBI, and offered credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 206 days

discovery → filing · 11 weeks / 74 days

Dec 2, 2025

Begins

Jun 26, 2026

Discovered

Sep 8, 2026

Filed

vs. sector median

+1 wks slower

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

Indiana State AGbd_d72aa89634ca104b2026-09-08Verified
Massachusetts State AGbd_42be94ca4e3869a12026-09-01 · +7dCandidate

Name: G.I. Medicine Associates, P.C.
norm: gi medicine associates

Name: G.I. Medicine Associates, P.C.
norm: gi medicine associates
Industry: HealthcarellmTechnologyllm

Discovered: Jun 26, 2026
Breach occurred: Dec 2, 2025 – Dec 18, 2025
Undetected for: 206 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 8, 2026
Affected individuals: 3state-resident count only
Data types: PHIIdentity (basic)Government IDHealth (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified the FBIFiled notice with New Hampshire Attorney General
Third party: via Aesto LLC d/b/a Aesto Health

During the incident: Contained the incident immediately upon detecting unauthorized activity
Commenced a thorough investigation
Engaged leading cybersecurity experts to identify what personal information was involved
Notified the FBI of the incident on May 18, 2026
Notified Covered Entity clients whose patient information was included in the files potentially accessed or acquired
Posted notice of the incident on its website on June 24, 2026
Provided notice to major statewide media in New Hampshire on July 2, 2026
Mailing notice letters to affected New Hampshire residents on September 8, 2026
Changes made: Updating and strengthening passwords
Implementing new technical safeguards
Revising policies and procedures
Sanctioning workforce members involved in the incident
Offering complimentary access to Experian IdentityWorks for identity protection
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 11 weeks(74 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 AGSep 1 · first

Indiana State AG+7d

New Hampshire State AG+7d · this page

Pattern: first filing Sep 1 (MA), last Sep 8 (NH) — a 7-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/gi-medicine-associates-20260908.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 8, 2026
Raw hash: 6ebdc58a79c245695aff38d6d4fedea15aff191f9bb759a02054fa2b707947a3

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityG.I. Medicine Associates, P.C.

Victim entityG.I. Medicine Associates, P.C.

Incidentdiscovered Jun 26, 2026

Stated responseContained the incident immediately upon detecting unauthorized activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov