Social EngineeringHealthcareHealthcarePhishingStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Health (basic)PHILowContained

BJC Healthcare

bd_b3031d473adbf02b · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 6, 2020

Filed

Jun 12, 2020

To disclose

14 weeks

Affected

14state residents only

Linked

2 filings

Confidence

65%

Full breach record for BJC Healthcare →3 incidents on file

BJC HealthCare notified Montana residents of a March 6, 2020 security incident where unauthorized access to employee email accounts occurred. The breach potentially exposed patient names, DOBs, medical record numbers, and limited clinical information. No evidence confirmed data was viewed or misused.

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Incident timeline

discovery → filing · 14 weeks / 98 days

Mar 6, 2020

Begins

Mar 6, 2020

Discovered

Jun 12, 2020

Filed

vs. sector median

+2 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_7e21f5d567e5445c2020-01-01 · +163dCandidate

Name: BJC Healthcare
norm: bjc healthcare

Name: BJC Healthcare
norm: bjc healthcare
Industry: Healthcarellm

Discovered: Mar 6, 2020
Breach occurred: Mar 6, 2020
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 12, 2020
Affected individuals: 14state-resident count only
Data types: Identity (basic)Health (basic)PHI
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: phishing_link

During the incident: Took steps to secure the email accounts
Engaged a leading computer forensic firm to assist with our investigation
Reviewed all of the emails and attachments contained in the employee email accounts
Changes made: Reinforced education with our staff regarding how to identify and avoid suspicious emails
Making additional security enhancements to our email environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(98 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+163d · this page

Pattern: first filing Jan 1 (IL), last Jun 12 (MT) — a 163-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/OCP/Consumer-102.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 12, 2020
Raw hash: 74a1eadd1ba9b022d6edc44d3be9d2ecf4df44da90c9d64c537055f6e2ebaa64

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityBJC Healthcare

Victim entityBJC Healthcare

Incidentdiscovered Mar 6, 2020

Stated responseTook steps to secure the email accounts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov