MalwareHealthcareHealthcareRansomwareStolen CredentialsData ExfiltratedData EncryptedCustomer Data InvolvedIdentity (basic)Government IDPHIHealth (basic)MediumContained

The Nebraska Medical Center

bd_17f540976673f68c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 20, 2020

Filed

Feb 5, 2021

To disclose

20 weeks

Affected

36state residents only

Linked

2 filings

Confidence

65%

Full breach record for The Nebraska Medical Center →3 incidents on file

Nebraska Medical Center notified patients of a breach where unauthorized access occurred between Aug 27 and Sep 20, 2020. Malware was deployed and patient PHI (names, SSNs, DOB, medical records) was acquired. Discovered Sep 20, 2020. Credit monitoring offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 24 days

discovery → filing · 20 weeks / 138 days

Aug 27, 2020

Begins

Sep 20, 2020

Discovered

Feb 5, 2021

Filed

vs. sector median

+9 wks slower

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Illinois State AGbd_bde7762d974b0f082021-01-01 · +35dVerified

Name: The Nebraska Medical Center
norm: the nebraska medical center

Name: The Nebraska Medical Center
norm: the nebraska medical center
Industry: Healthcarellm

Discovered: Sep 20, 2020
Breach occurred: Aug 27, 2020 – Sep 20, 2020
Undetected for: 24 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 36state-resident count only
Data types: Identity (basic)Government IDPHIHealth (basic)
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Took steps to secure the network
Began an investigation with the assistance of a computer forensic firm
Offering you a complimentary one-year membership of Experian IdentityWorks SM Credit 3B
Regularly audit our system for potential unauthorized activity
Implemented and will continue to implement enhanced network monitoring tools
Changes made: Implemented and will continue to implement enhanced network monitoring tools
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 weeks(138 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Illinois State AGJan 1 · first

Montana State AG+35d · this page

Pattern: first filing Jan 1 (IL), last Feb 5 (MT) — a 35-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://dojmt.gov/wp-content/uploads/nebSamp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 5, 2021
Raw hash: 54563739355151332fc56d9a969ef54d74081d1aca724cab01cc5cf9ef74e844

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityThe Nebraska Medical Center

Victim entityThe Nebraska Medical Center

Incidentdiscovered Sep 20, 2020

Stated responseTook steps to secure the network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov