DisclosureLens
Social EngineeringHealthcareProfessional ServicesHealthcarePhishingTargetedGovernment IDIdentity (basic)PHIMediumContained

Health Management Systems of America

bd_f8e9a72c245025ea · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 9, 2024

Filed

Mar 22, 2026

To disclose

16 months

Affected

1state residents only

Confidence

67%
Full breach record for Health Management Systems of America →4 incidents on file

Health Management Systems of America (HMSA) reported a data breach to the Vermont Attorney General involving one Vermont resident. On December 9, 2024, HMSA detected unauthorized access to a single email account caused by a spear phishing campaign. The attacker accessed protected health information and Social Security numbers. HMSA secured the account, reset passwords, and engaged forensic investigators. Notification was sent to the affected individual in February 2026, offering 12 months of credit monitoring via Kroll.

Vermont clock✗ VT AG >45 bday16 months discovery → filing
⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

discovery → filing · 16 months / 468 days

Dec 9, 2024

Discovered

Mar 22, 2026

Filed

vs. sector median

+55 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 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.