DisclosureLens
WISCONSINMalwareHealthcareHealthcareRansomwareBusiness Associate (HIPAA)Customer Data InvolvedData EncryptedRansom DemandedHealth (basic)Identity (basic)MediumResolved

THE MEDICAL COLLEGE OF WISCONSIN, INC.

bd_2a15b0c4736070dc · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Oct 11, 2020

To disclose

—

Affected

5,655

Confidence

97%
Full breach record for THE MEDICAL COLLEGE OF WISCONSIN, INC. →7 incidents on file

The Medical College of Wisconsin, Inc. reported to HHS on 2020-10-11 a Hacking/IT Incident (ransomware) affecting 5,655 individuals. The covered entity's business associate experienced a ransomware attack affecting ePHI stored on a Network Server. Exposed ePHI included names, addresses, dates of birth, and treatment information. The CE notified HHS, affected individuals, and the media, and provided substitute notice.

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

Oct 11, 2020

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.Confirmed5,655 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.