MalwareFinancial ServicesFinanceRansomwareSupply Chain (3P Vendor)Data EncryptedGovernment IDPIIHighResolved

Janney Montgomery Scott LLC

bd_a046ce59a2ee361d · schema v1 · pii pii-v1

Severity

High

Discovered

Apr 1, 2022

Filed

Apr 29, 2022

To disclose

28 days

Affected · nationwide

31,859144 in this filing

Linked

5 filings

Confidence

65%

Full breach record for Janney Montgomery Scott LLC →

Janney Montgomery Scott LLC reported a ransomware attack at a third-party vendor occurring on 12/23/2021, discovered on 04/01/2022. The breach compromised Social Security Numbers for 31,859 individuals, including 144 Maine residents. The firm notified affected individuals on 04/29/2022 and offered 12 months of credit monitoring and identity theft protection services.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Apr 1, 2022 → Filed with AG Apr 29, 202228d ✓ ME AG ≤30d28 days discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 99 days

discovery → filing · 28 days

Dec 23, 2021

Begins

Apr 1, 2022

Discovered

Apr 29, 2022

Filed

vs. sector median

4 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_08df3ab97507398a2022-04-29Verified
Massachusetts State AGbd_7098cd3cfe4361f82022-04-29Verified
Montana State AGbd_590c157e5f503fe52022-04-28 · +1dCandidate
New Hampshire State AGbd_7164966a2acef87b2022-05-02 · +3dVerified

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

Name: Janney Montgomery Scott LLC
norm: janney montgomery scott
Industry: Financial Services
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: 31,859state + nationwide
Data types: Government IDPII
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Regulator citations: Filed notification with Maine Attorney General
Initial access: supply_chain

During the incident: Offered 12 months of complimentary credit monitoring through Experian
Provided identity theft detection and restoration
Provided identity theft insurance
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: ME AG ≤30d · 28d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Apr 1, 2022
→ Filed with AG: Apr 29, 2022
28d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Apr 1, 2022 → Filed with AG: Apr 29, 2022	28d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Montana State AGApr 28 · first

Indiana State AG+1d

Massachusetts State AG+1d

Maine State AG+1d · this page

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/28d4986e-8134-4e77-9a78-37b13ba4f625.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 29, 2022
Raw hash: 9c4d44129b15ac1928186a9437287d5ac5d18eb5371b491401ec3f4cc31573fb

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityJanney Montgomery Scott LLC

Victim entityJanney Montgomery Scott LLC

Incidentdiscovered Apr 1, 2022

Stated responseOffered 12 months of complimentary credit monitoring through Experian

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov