Social EngineeringHealthcareHealthcarePhishingCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountMediumResolved

US Oncology Inc

bd_5b06f7d059cbc945 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 7, 2018

Filed

May 9, 2019

To disclose

48 weeks

Affected

2state residents only

Linked

3 filings

Confidence

66%

Full breach record for US Oncology Inc →

US Oncology, Inc. notified Montana residents of a spear-phishing incident in June 2018 where an employee's credentials were compromised. The attacker accessed an email containing employee PII, including SSNs and 401k balances. No evidence of misuse was found. Credit monitoring was offered.

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Incident timeline

discovery → filing · 48 weeks / 336 days

Jun 7, 2018

Begins

Jun 7, 2018

Discovered

May 9, 2019

Filed

vs. sector median

+39 wks slower

This filing is one of 3 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_ab9c1c1e1ec8958d2019-05-09Verified
Oregon State AGbd_d02c9cd9e94b38b62019-05-09Verified by operator

Name: US Oncology Inc
norm: us oncology

Name: US Oncology Inc
norm: us oncology
Industry: Healthcarellm

Discovered: Jun 7, 2018
Breach occurred: Jun 7, 2018
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1566.001 Spearphishing AttachmentT1078 Valid Accounts
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: The phishing URL was blocked
The user’s password was reset
The phishing e-mail was purged from the mailbox
Engaged outside counsel to review the email account
Contracted with Experian to provide you with credit monitoring services
Changes made: Offering 12 months of complimentary credit monitoring through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 48 weeks(336 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGMay 9 · first

Oregon State AGMay 9 · first

Montana State AGMay 9 · 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/OCP/Consumer-Notice-16.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 9, 2019
Raw hash: 36b124e17a3c69f958a7ca0abf1c36b30e5a7b7e99f30bb870b8d1266a872fbb

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityUS Oncology Inc

Victim entityUS Oncology Inc

Incidentdiscovered Jun 7, 2018

Stated responseThe phishing URL was blocked

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov