MalwareFinancial ServicesFinanceRansomwareSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDPIIMediumContained

Janney Montgomery Scott LLC

bd_590c157e5f503fe5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 1, 2022

Filed

Apr 28, 2022

To disclose

27 days

Affected

17state residents only

Linked

5 filings

Confidence

66%

Full breach record for Janney Montgomery Scott LLC →

Janney Montgomery Scott LLC notified clients that their PII (including SSN, DOB, account numbers) was exfiltrated from third-party vendor R.R. Donnelley & Sons Company following a ransomware incident. RRD detected the intrusion on Dec 23, 2021. Janney confirmed its own systems were secure and offered 1-year Experian credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 99 days

discovery → filing · 27 days

Dec 23, 2021

Begins

Apr 1, 2022

Discovered

Apr 28, 2022

Filed

vs. sector median

5 wks faster

This filing is one of 5 about the same incident.View merged incident

Part of R. R. DONNELLEY & SONS COMPANY supply-chain incident (2022) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Indiana State AGbd_08df3ab97507398a2022-04-29 · +1dVerified
Massachusetts State AGbd_7098cd3cfe4361f82022-04-29 · +1dVerified
Maine State AGbd_a046ce59a2ee361d2022-04-29 · +1dVerified
New Hampshire State AGbd_7164966a2acef87b2022-05-02 · +4dVerified

Name: Janney Montgomery Scott LLC
norm: janney montgomery scott

Name: Janney Montgomery Scott LLC
norm: janney montgomery scott
Industry: Financial Servicesllm

Discovered: Apr 1, 2022
Breach occurred: Dec 23, 2021
Undetected for: 99 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 29, 2022
Affected individuals: 17state-resident count only
Data types: Identity (basic)Government IDPII
Data elements: Social Security numberDate of birth
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Engaged a cybersecurity expert to determine what happened and assist in conducting a thorough review
Offering complimentary identity protection/credit monitoring
Conducted an internal review of the accounts that RRD reported had been impacted
Continue to actively monitor the security of our systems and client accounts
Changes made: Investing in internal processes, tools, and resources to reduce the likelihood that this could happen again
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 days(27 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Montana State AGApr 28 · first · this page

Indiana State AG+1d

Massachusetts State AG+1d

Maine State AG+1d

New Hampshire State AG+4d

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-Notification-Letter-327.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 28, 2022
Raw hash: dbc9e8a7085c04a902c4ae71ae2da9337ca3e249fe457773cfd6834785aef60c

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityJanney Montgomery Scott LLC

Victim entityJanney Montgomery Scott LLC

Incidentdiscovered Apr 1, 2022

Stated responseEngaged a cybersecurity expert to determine what happened and assist in conducting a thorough review

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov