HackingTechnologyHealthcareInformationStolen CredentialsTargetedData ExfiltratedFinancial accountIdentity (basic)Government IDPHIPIIHealth (basic)HighContained

Aesto Health

bd_6ba6b179ea4373bf · schema v1 · pii pii-v1

Severity

High

Discovered

Dec 18, 2025

Filed

Aug 4, 2026

To disclose

33 weeks

Affected

37,253state residents only

Linked

13 filings

Confidence

70%

Full breach record for Aesto Health →2 incidents on file

Aesto, LLC reported unauthorized access to its AWS infrastructure between Dec 2 and Dec 18, 2025. The incident impacted sensitive information pertaining to HIPAA Covered Entity Clients. Aesto notified affected entities on June 26, 2026. 37,253 Washington residents were affected. No evidence of misuse was found.

J jump to incidentP pin to compareR raw source

Washington clock✗ WA AG >90d33 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 16 days

discovery → filing · 33 weeks / 229 days

Dec 2, 2025

Begins

Dec 18, 2025

Discovered

Aug 4, 2026

Filed

vs. sector median

+22 wks slower

This filing is one of 13 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Oregon State AGbd_ffdc3411341bf72d2026-08-05 · +1dVerified
Illinois State AGbd_49a6928816a82c852026-08-01 · +3dVerified
Illinois State AGbd_a10ec3898d9326e02026-08-01 · +3dVerified
California State AGbd_65f70444b3fbe6f72026-08-24 · +20dVerified

Show 6 more filings ↓up to 80d gap

Massachusetts State AGbd_a7593a37841d8ff02026-09-01 · +28dVerified
Massachusetts State AGbd_b1d347b681553e3a2026-09-01 · +28dVerified
New Hampshire State AGbd_7148309868a16c342026-09-25 · +52dVerified
Vermont State AGbd_8145059268bb2d362026-09-25 · +52dVerified
California State AGbd_b3f56c134cd959942026-10-01 · +58dVerified
New Hampshire State AGbd_be053c291c764c092026-10-23 · +80dVerified

Showing first 10 of 12 linked disclosures.

Name: Aesto Health
norm: aesto health
Domain: aestohealth.com

Name: Aesto Health
norm: aesto health
Domain: aestohealth.com
Industry: TechnologyllmHealthcarellm

Discovered: Dec 18, 2025
Breach occurred: Dec 2, 2025 – Dec 18, 2025
Undetected for: 16 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 37,253state-resident count only
Data types: PIIPHI
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthMedical informationProtected health information
WA-stated cause: Unauthorized Access
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Commenced a prompt and thorough investigation
Worked very closely with external cybersecurity professionals experienced in handling these types of incidents
Conducted an extensive forensic investigation and manual document review
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 33 weeks(229 days from discovery to filing)
Compliance flags: WA AG >90d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 7 states

View merged incident ↗

Illinois State AGAug 1 · first

Washington State AG+3d · this page

Oregon State AG+4d

California State AG+23d

Massachusetts State AG+31d

New Hampshire State AG+55d

Vermont State AG+55d

California State AG+61d

New Hampshire State AG+83d

Pattern: first filing Aug 1 (IL), last Oct 23 (NH) — a 83-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 12 — the full spread may be wider.

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA42154.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 4, 2026
Raw hash: ccc2a1b3d675bea8c4dcecf0165aa9e8ac4c81b69be99a64e1d98aac0a1be3d6

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityAesto Health

Victim entityAesto Health

Incidentdiscovered Dec 18, 2025

Stated responseCommenced a prompt and thorough investigation

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com