DisclosureLens
UnknownHealthcareHealthcareSupply Chain (3P Vendor)Customer Data InvolvedHealth (basic)Identity (basic)Government IDPHIMedium

Allied Health MSO Holdco, LLC

bd_f88d1a644aafeb1e · schema v1 · pii pii-v2

Severity

Medium

Discovered

—

Filed

Aug 1, 2026

To disclose

—

Affected

563state residents only

Confidence

67%

Aesto, LLC, a healthcare data migration and archiving service provider for Allied Health MSO Holdco, LLC, experienced a data security incident affecting personal information of Massachusetts residents. The incident involved a third-party vendor. Affected data types likely include PHI and PII (SSN, DOB, address). Aesto is offering 24 months of credit monitoring and identity theft protection. No specific dates for discovery or occurrence are provided in the notice letter.

Incident timeline — partial

? — ?

Breach window unknown

Aug 1, 2026

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed563 affectedView incident

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.