ILLINOISSocial EngineeringHealthcareHealthcarePhishingStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)Financial accountHighResolved

THE UNIVERSITY OF CHICAGO MEDICAL CENTER

bd_579dc4b435838e45 · schema v1 · pii pii-v1

Severity

High

Discovered

Mar 28, 2024

Filed

May 24, 2024

To disclose

—

Affected

10,332

Linked

5 filings

Confidence

97%

Full breach record for THE UNIVERSITY OF CHICAGO MEDICAL CENTER →3 incidents on file

University of Chicago Medical Center (IL) reported to HHS on 2024-05-24 a Hacking/IT Incident (email phishing attack) affecting 10,332 individuals. Multiple employees were targeted in the phishing campaign. PHI exposed included names, dates of birth, Social Security numbers, passport numbers, driver's license/state ID numbers, financial information, diagnoses, medications, and health insurance/treatment information. Breached information located in Email. No business associate was involved. The CE offered credit monitoring and enhanced security safeguards; staff were retrained on email security.

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HIPAA clock✓ HHS report on time

⚠ 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 · 8 weeks / 57 days

Mar 28, 2024

Discovered

May 24, 2024

Filed

This filing is one of 5 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_487a51f21555d0882024-05-24Verified
Maine State AGbd_6f1b677e1645896e2024-05-24Verified
Indiana State AGbd_95695ad34ba421f92024-05-24Verified
Illinois State AGbd_723bf1e39f74089b2024-05-01 · +23dVerified by operator

Name: THE UNIVERSITY OF CHICAGO MEDICAL CENTER
norm: the university of chicago medical center
Domain: uchicagomedicine.org
Industry: Health Care Services

Name: THE UNIVERSITY OF CHICAGO MEDICAL CENTER
norm: the university of chicago medical center
Domain: uchicagomedicine.org
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: Mar 28, 2024
Materiality determined: —
Notification sent: —
Affected individuals: 10,332nationwide
Data types: Identity (basic)Government IDHealth (basic)Financial account
HHS breach type: Hacking / IT incident
Where the data lived: Email
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1566 PhishingT1078 Valid Accounts
Threat actor: External
Regulator citations: HHS OCR notified
Initial access: phishing_link

During the incident: Notified affected individuals
Notified media and provided substitute notice
Provided complimentary credit monitoring services
Implemented additional administrative, technical, and security safeguards
Retrained staff on email security
Changes made: Additional administrative safeguards implemented
Additional technical safeguards implemented
Additional security safeguards implemented
Staff email security retraining conducted
Source: Quoted from the filing itself, not independently verified.

Compliance flags: HHS report on timeHHS notified
Discovery-date grounding: 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.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: Mar 28, 2024
→ Notified: not extracted
— 60 days HHS report on time
HIPAA
Discovered: Mar 28, 2024
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: Mar 28, 2024 → Notified: not extracted	—	60 days	HHS report on time
HIPAA	Discovered: Mar 28, 2024 → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 4 states

View merged incident ↗

Illinois State AGMay 1 · first

Massachusetts State AG+23d

Maine State AG+23d

Indiana State AG+23d

HHS OCR+23d · this page

Pattern: first filing May 1 (IL), last May 24 (IL) — a 23-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://ocrportal.hhs.gov/ocr/breach/breach_report.jsf
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: May 24, 2024
Raw hash: 96e418b460ae9e1b22a7aea9076241bdd30b0b0be0a783d102e7f624deed3565

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Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityTHE UNIVERSITY OF CHICAGO MEDICAL CENTER

Victim entityTHE UNIVERSITY OF CHICAGO MEDICAL CENTER

Incidentdiscovered Mar 28, 2024

Stated responseNotified affected individuals

ComplianceHHS report on time

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing