HackingFinancial ServicesTechnologyFinanceStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)Government IDMediumContained

Rialto Markets LLC

bd_1a4df74b3ca01c1d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 24, 2022

Filed

Apr 21, 2022

To disclose

8 weeks

Affected

23state residents only

Linked

5 filings

Confidence

66%

Full breach record for Rialto Markets LLC →

Rialto Markets LLC, a broker-dealer, notified Montana residents of a data breach affecting a single employee email account. Unauthorized access occurred between Nov 30, 2021, and Feb 25, 2022. Personal info including names and SSNs was accessed. Rialto engaged forensic experts, secured the account, and offered 2 years of Kroll identity monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 86 days

discovery → filing · 8 weeks / 56 days

Nov 30, 2021

Begins

Feb 24, 2022

Discovered

Apr 21, 2022

Filed

vs. sector median

on median

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

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_25c5e22e83b9b6822022-04-21Verified
California State AGbd_6394874e71b8fd332022-04-21Verified
Indiana State AGbd_78a7610ef5ae2dc02022-04-21Verified
Maine State AGbd_8475aaf4d45166ff2022-04-21Verified

Name: Rialto Markets LLC
norm: rialto markets
Domain: rialtomarkets.com

Name: Rialto Markets LLC
norm: rialto markets
Domain: rialtomarkets.com
Industry: Financial ServicesllmTechnologyllm

Discovered: Feb 24, 2022
Breach occurred: Nov 30, 2021 – Feb 25, 2022
Undetected for: 86 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 23state-resident count only
Data types: PIIIdentity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Took steps to secure the email account
Began an investigation with the assistance of outside cybersecurity and forensic experts
Implemented additional access controls and enhanced system logging for our corporate email system
Secured the services of Kroll to provide identity monitoring at no cost to you for two years
Changes made: Implemented additional access controls
Enhanced system logging for our corporate email system
Continue to evaluate additional controls
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(56 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 ↗

Massachusetts State AGApr 21 · first

California State AGApr 21 · first

Indiana State AGApr 21 · first

Maine State AGApr 21 · first

Montana State AGApr 21 · 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-315.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 21, 2022
Raw hash: c14e237c95967f39b5ab0c2b5edf8834c2e17b7465c68ed80d176cb8fd555fbf

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityRialto Markets LLC

Victim entityRialto Markets LLC

Incidentdiscovered Feb 24, 2022

Stated responseTook steps to secure the email account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov