Social EngineeringHealthcareHealthcarePhishingStolen CredentialsCustomer Data InvolvedTargetedPHIHealth (basic)PIILowContained

Oaklawn Hospital

bd_42c177bfef449d46 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jul 28, 2020

Filed

Sep 25, 2020

To disclose

8 weeks

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for Oaklawn Hospital →

Oaklawn Hospital notified patients of a phishing incident in April 2020 where employees clicked a malicious link, allowing unauthorized access to email accounts. The breach may have exposed PHI. No SSN or financial data was accessed. The hospital disabled accounts, reset passwords, and engaged forensic investigators.

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Incident timeline

undetected · 105 days

discovery → filing · 8 weeks / 59 days

Apr 14, 2020

Begins

Jul 28, 2020

Discovered

Sep 25, 2020

Filed

vs. sector median

4 wks faster

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

HHS OCRbd_676c8d930733715b2020-09-25Verified

Name: Oaklawn Hospital
norm: oaklawn hospital

Name: Oaklawn Hospital
norm: oaklawn hospital
Industry: Healthcarellm

Discovered: Jul 28, 2020
Breach occurred: Apr 14, 2020 – Apr 15, 2020
Undetected for: 105 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: PHIHealth (basic)PII
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: phishing_link

During the incident: Disabled the impacted email accounts
Required mandatory password resets
Commenced a thorough investigation
Worked very closely with external cybersecurity professionals
Conducted an extensive forensic investigation
Conducted a comprehensive manual document review
Changes made: Implemented additional technical safeguards on our email system
Implemented additional training and education for our employees to increase awareness of the risks of malicious emails
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(59 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 ↗

HHS OCRSep 25 · first

Montana State AGSep 25 · first · this page

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/oak-samp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 25, 2020
Raw hash: 947d7fe850a5e60fc6a25283f6da8113602801a76236a2da7e56f6370effa4d0

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityOaklawn Hospital

Victim entityOaklawn Hospital

Incidentdiscovered Jul 28, 2020

Stated responseDisabled the impacted email accounts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov