HackingFinancial ServicesFinanceVulnerability ExploitCapture Stored DataData ExfiltratedTargetedIdentity (basic)Government IDFinancial accountMediumContained

TD AMERITRADE CLEARING, INC.

bd_2abddba09852610c · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 30, 2023

Filed

Aug 8, 2023

To disclose

10 weeks

Affected

142state residents only

Linked

2 filings

Confidence

65%

Full breach record for TD AMERITRADE CLEARING, INC. →4 incidents on file

TD Ameritrade, Inc. notified Montana residents of a data breach involving MOVEit Transfer software. Unauthorized access occurred between May 28-30, 2023, resulting in the theft of names, SSNs, and potentially financial account data. TD Ameritrade halted the software, engaged experts, and notified law enforcement. Affected individuals are offered two years of credit monitoring.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >30d10 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 2 days

discovery → filing · 10 weeks / 70 days

May 28, 2023

Begins

May 30, 2023

Discovered

Aug 8, 2023

Filed

vs. sector median

+2 wks slower

This filing is one of 2 about the same incident.View merged incident

Part of Progress Software Corporation supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

A leak claim by cl0p about this victim predates this filing by 32 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

California State AGbd_bbf1d3a4299b31212023-08-08Verified

Name: TD AMERITRADE CLEARING, INC.
norm: td ameritrade clearing
Domain: tdameritrade.com

Name: TD AMERITRADE CLEARING, INC.
norm: td ameritrade clearing
Domain: tdameritrade.com
Industry: Financial Servicesllm

Discovered: May 30, 2023
Breach occurred: May 28, 2023 – May 30, 2023
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 3, 2023
Affected individuals: 142state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Working with law enforcement
Initial access: exploit_public_facing

During the incident: Halted any use of MOVEit Transfer
Conducted a thorough investigation in close consultation with independent experts
Notified and have been working with law enforcement
Offering two years of credit monitoring and identity protection services from IdentityForce at no cost
Changes made: Offering two years of credit monitoring and identity protection services from IdentityForce at no cost
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(70 days from discovery to filing)
Compliance flags: Leak >30d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

California State AGAug 8 · first

Montana State AGAug 8 · 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-notification-letter-529.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 8, 2023
Raw hash: eed3983d578e509804947c67dd4ff527ba42bfbc73f275d9e5187051f8a5107b

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityTD AMERITRADE CLEARING, INC.

Victim entityTD AMERITRADE CLEARING, INC.

Incidentdiscovered May 30, 2023

Stated responseHalted any use of MOVEit Transfer

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancedojmt.gov