DisclosureLens
INDIANAHackingHealthcareHealthcareBusiness Associate (HIPAA)Customer Data InvolvedData ExfiltratedPHIHealth (basic)Identity (basic)Government IDHighContained

Allison Transmission Inc.

bd_48b644c940547ee3 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Aug 10, 2023

To disclose

—

Affected

5,330

Confidence

68%
Full breach record for Allison Transmission Inc. →

Allison Transmission Inc. Health Care Program for Hourly Employees / Wellness Program for Salaried Employees reported to HHS on 2023-08-10 a Hacking/IT Incident affecting 5330 individuals. Breached information located on Network Server. A business associate's software application exposed PHI including names, DOB, emails, and SSNs. The BA notified individuals, offered credit monitoring, and implemented technical safeguards.

HIPAA clock✓ HHS notified
⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Aug 10, 2023

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.Confirmed5,330 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.