HackingHealthcareEducationHealthcareVulnerability ExploitCapture Stored DataSupply Chain (3P Vendor)Data ExfiltratedTargetedPIIIdentity (basic)LowActive

Stanford School of Medicine

bd_c50f2ea2afabfd49 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jan 21, 2021

Filed

Jun 25, 2021

To disclose

22 weeks

Affected

7state residents only

Linked

6 filings

Confidence

64%

Stanford School of Medicine notified Montana residents of a data breach involving its third-party file-sharing vendor, Accellion. Suspicious activity was detected on Jan 21, 2021, and stolen files were posted online on March 29, 2021. The incident involved PII. Stanford engaged the FBI and offered credit monitoring.

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Incident timeline

discovery → filing · 22 weeks / 155 days

Jan 21, 2021

Begins

Jan 21, 2021

Discovered

Jun 25, 2021

Filed

vs. sector median

+11 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Montana State AGbd_864ea378b9ce18422021-06-25Verified
New Hampshire State AGbd_11bc84875db1df6c2021-05-28 · +28dVerified
Maine State AGbd_59f18631ed31625b2021-05-28 · +28dVerified
HHS OCRbd_8d34a319af92bf622021-05-28 · +28dVerified

Show 1 more filing ↓up to 28d gap

Indiana State AGbd_b52e5916a5ebb51d2021-05-28 · +28dVerified

Name: Stanford School of Medicine
norm: stanford school of medicine
Domain: stanford.edu

Name: Stanford School of Medicine
norm: stanford school of medicine
Domain: stanford.edu
Industry: HealthcarellmEducationllm

Discovered: Jan 21, 2021
Breach occurred: Jan 21, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 28, 2021
Affected individuals: 7state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified law enforcement, including the Federal Bureau of Investigation (FBI)
Third party: via Accellion
Initial access: exploit_public_facing

During the incident: Stopped using the product
Launched an investigation
Notified law enforcement, including the Federal Bureau of Investigation (FBI)
Offering identity theft protection services through IDX
Changes made: Offering 12/24 months of credit and CyberScan monitoring
Offering insurance reimbursement policy
Offering fully managed ID theft recovery services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 22 weeks(155 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 5 states

View merged incident ↗

New Hampshire State AGMay 28 · first

Maine State AGMay 28 · first

HHS OCRMay 28 · first

Indiana State AGMay 28 · first

Montana State AG+28d

Montana State AG+28d · this page

Pattern: first filing May 28 (NH), last Jun 25 (MT) — a 28-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/a-notif-22.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 25, 2021
Raw hash: dca0f6a354d08411174b9e1448f2fc6394dc63dfeddcd96aefb0aa1160c9749b

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityStanford School of Medicine

Victim entityStanford School of Medicine

Incidentdiscovered Jan 21, 2021

Stated responseStopped using the product

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov