HackingHealthcareHealthcareSupply Chain (3P Vendor)Business Associate (HIPAA)Customer Data InvolvedPHIHealth (basic)Identity (basic)LowContained

Health Access Network Inc.

bd_5a98013103ed07b3 · schema v1 · pii pii-v2

Severity

Low

Discovered

Dec 18, 2025

Filed

Sep 1, 2026

To disclose

—

Affected

243state residents only

Linked

3 filings

Confidence

67%

Full breach record for Health Access Network Inc. →

Health Access Network Inc notified individuals that a third-party vendor, Aesto, LLC, experienced a network security incident affecting 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. Affected data includes full names and PHI. Aesto engaged external cybersecurity professionals and offered identity monitoring services.

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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 3 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Vermont State AGbd_2316face105e9c102026-09-23 · +22dCandidate
New Hampshire State AGbd_940a9250b897f7172026-09-23 · +22dVerified

Name: Health Access Network Inc.
norm: health access network

Name: Health Access Network Inc.
norm: health access network
Industry: Healthcarellm

Discovered: Dec 18, 2025
Breach occurred: Dec 2, 2025 – Dec 18, 2025
Undetected for: 16 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 243state-resident count only
Data types: PHIHealth (basic)Identity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Third party: via Aesto, LLC

During the incident: Commenced a prompt and thorough investigation
Worked very closely with external cybersecurity professionals experienced in handling these types of incidents
Conducted extensive forensic investigation and manual document review
Offering a complimentary membership of Kroll’s identity monitoring
Changes made: Continually evaluate and modify practices and internal controls to enhance the security and privacy of personal information
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 · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGSep 1 · first · this page

Vermont State AG+22d

New Hampshire State AG+22d

Pattern: first filing Sep 1 (MA), last Sep 23 (NH) — a 22-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/2026-1608-health-access-network-inc/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: 9f6489efce353eecc42578fe1f50b7b9628600b4a44fbd54dfd89f7c26a2d7fb

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityHealth Access Network Inc.

Victim entityHealth Access Network Inc.

Incidentdiscovered Dec 18, 2025

Stated responseCommenced a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov