HackingHealthcareTechnologyHealthcareBusiness Associate (HIPAA)Customer Data InvolvedDelayed DiscoveryPHIIdentity (basic)Health (basic)LowContained

AESTO, LLC

bd_d39e08ca3ce7e118 · schema v1 · pii pii-v2

Severity

Low

Discovered

Dec 18, 2025

Filed

Sep 1, 2026

To disclose

—

Affected

Not disclosed

Linked

9 filings

Confidence

68%

Full breach record for AESTO, LLC →

Aesto, LLC, a healthcare data migration and archiving service provider, experienced a network security incident impacting its AWS infrastructure. Unauthorized access to protected health information (PHI) occurred between December 2 and December 18, 2025. Aesto discovered the incident on December 18, 2025, and confirmed the scope of affected data on May 26, 2026. Affected individuals include residents of multiple states, including Massachusetts and Rhode Island. Aesto engaged external cybersecurity professionals, conducted a forensic investigation, and is offering complimentary identity monitoring services to affected individuals. No evidence of misuse was found.

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Incident timeline

undetected · 16 days

Dec 2, 2025

Begins

Dec 18, 2025

Discovered

Sep 1, 2026

Filed

This filing is one of 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

New Hampshire State AGbd_64f64f39cb8a849a2026-08-28 · +4dVerified
New Hampshire State AGbd_4fe674ca1413cfc02026-08-27 · +5dVerified
California State AGbd_65f70444b3fbe6f72026-08-24 · +8dVerified
New Hampshire State AGbd_b5839d18101d09ca2026-08-21 · +11dVerified

Show 4 more filings ↓up to 32d gap

New Hampshire State AGbd_eac49aabb3a023ff2026-08-21 · +11dVerified
Illinois State AGbd_49a6928816a82c852026-08-01 · +31dCandidate
Illinois State AGbd_a10ec3898d9326e02026-08-01 · +31dVerified
HHS OCRbd_6054557cd914ee672026-07-31 · +32dCandidate

Name: Aesto, LLC
norm: aesto

Name: AESTO, LLC
norm: aesto
Industry: HealthcarellmTechnologyllm

Discovered: Dec 18, 2025
Breach occurred: Dec 2, 2025 – Dec 18, 2025
Undetected for: 16 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PHIIdentity (basic)Health (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Third party: via Aesto, LLC

During the incident: Commenced a prompt and thorough investigation
Worked closely with external cybersecurity professionals
Conducted extensive forensic investigation and manual document review
Informed Covered Entity of the incident
Offered complimentary identity monitoring services through Kroll
Set up a dedicated toll-free response line
Changes made: Continually evaluate and modify practices and internal controls to enhance security and privacy
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 5 states

View merged incident ↗

HHS OCRJul 31 · first

Illinois State AG+1d

New Hampshire State AG+21d

California State AG+24d

New Hampshire State AG+27d

New Hampshire State AG+28d

Massachusetts State AG+32d · this page

Pattern: first filing Jul 31 (AL), last Sep 1 (MA) — a 32-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://www.mass.gov/doc/2026-1544-texas-spine-consultants-pllc/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 1, 2026
Raw hash: accf610db54dc5ed6fc852df5816975055d1d5f9859aedb7b99779399de36dc8

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityAesto, LLC

Victim entityAESTO, LLC

Incidentdiscovered Dec 18, 2025

Stated responseCommenced a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov