Social EngineeringHealthcareHealthcarePhishingStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedData ExfiltratedIdentity (basic)Government IDHealth (basic)Financial accountMediumActive

THE MEDICAL COLLEGE OF WISCONSIN, INC.

bd_43e11bf192e07fe9 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 20, 2017

Filed

Nov 17, 2017

To disclose

8 weeks

Affected

6state residents only

Linked

4 filings

Confidence

64%

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

The Medical College of Wisconsin (MCW) notified Washington AG that a phishing attack compromised employee email accounts between July 21-28, 2017. Unauthorized access occurred, potentially exposing patient PII, SSNs, medical records, and financial data. MCW engaged forensic investigators, secured accounts, and offered credit monitoring to affected individuals.

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Incident timeline

undetected · 61 days

discovery → filing · 8 weeks / 58 days

Jul 21, 2017

Begins

Sep 20, 2017

Discovered

Nov 17, 2017

Filed

vs. sector median

1 wks faster

This filing is one of 4 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

HHS OCRbd_7aa641482dbfaf182017-11-17Verified
Montana State AGbd_d0e305ef287fbb772017-11-17Verified
Oregon State AGbd_d7fc57c44d3545be2017-11-30 · +13dCandidate

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

Name: THE MEDICAL COLLEGE OF WISCONSIN, INC.
norm: the medical college of wisconsin
Industry: Healthcarellm

Discovered: Sep 20, 2017
Breach occurred: Jul 21, 2017 – Jul 28, 2017
Undetected for: 61 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 17, 2017
Affected individuals: 6state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Financial account
Data elements: Medical information
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Notified the Secretary of the Washington State Attorney General's OfficeNotified the Secretary of the U.S. Department of Health and Human Services
Initial access: phishing_link

During the incident: Disabled the impacted email accounts
Changed the passwords to other suspicious accounts
Commenced an independent computer forensic investigation
Offered a complimentary one-year membership of credit monitoring and identity theft protection services
Placing a fraud alert and/or security freeze
Providing dedicated call center support
Modifying its practices and procedures to enhance appropriate security and privacy of patient information
Conducting ongoing cyber security and firewall reviews
Changes made: Modifying its practices and procedures to enhance appropriate security and privacy of patient information
Conducting ongoing cyber security and firewall reviews
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(58 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

HHS OCRNov 17 · first

Montana State AGNov 17 · first

Washington State AGNov 17 · first · this page

Oregon State AG+13d

Pattern: first filing Nov 17 (WI), last Nov 30 (OR) — a 13-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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachM9751.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 17, 2017
Raw hash: fb93dda1b7bebca20e359f504694fae67be0a6045c2da39d962b07df317a8059

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

Victim entityTHE MEDICAL COLLEGE OF WISCONSIN, INC.

Incidentdiscovered Sep 20, 2017

Stated responseDisabled the impacted email accounts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com