HackingFinancial ServicesFinanceSupply Chain (3P Vendor)Data ExfiltratedIdentity (basic)Government IDMediumContained

Advisor Group Holdings, Inc

bd_ffd50105eea9996d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 17, 2023

Filed

May 17, 2023

To disclose

17 weeks

Affected

19state residents only

Linked

2 filings

Confidence

66%

Full breach record for Advisor Group Holdings, Inc →

Advisor Group Holdings, Inc. notified Montana residents of a data breach involving its vendor, R.R. Donnelley & Sons Company. On December 23, 2021, RRD experienced a systems intrusion. Advisor Group was notified on January 17, 2023, that customer names, addresses, and Social Security Numbers were exfiltrated. The incident is contained; affected individuals received 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 390 days

discovery → filing · 17 weeks / 120 days

Dec 23, 2021

Begins

Jan 17, 2023

Discovered

May 17, 2023

Filed

vs. sector median

+9 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Oregon State AGbd_6d7b7dcb4777ee4d2023-05-17Candidate

Name: Advisor Group Holdings, Inc
norm: advisor group

Name: Advisor Group Holdings, Inc
norm: advisor group
Industry: Financial Servicesllm

Discovered: Jan 17, 2023
Breach occurred: Dec 23, 2021
Undetected for: 390 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 8, 2023
Affected individuals: 19state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Third party: via R.R. Donnelley & Sons Company
Initial access: supply_chain

During the incident: Engaged forensic resources and third parties to assist in its evaluation of the intrusion
Shut down all impacted servers
Implemented proper data protection safeguards
Arranged for 24 Month membership of Experian's IdentityWorks at no cost
Changes made: Implemented proper data protection safeguards to better protect information from subsequent incidents
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(120 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Oregon State AGMay 17 · first

Montana State AGMay 17 · 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-293.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 17, 2023
Raw hash: 67f8af4dce83dcd5da3e74c56cfbd1820ac9bbd9473b990fe2c25fb150367a42

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityAdvisor Group Holdings, Inc

Victim entityAdvisor Group Holdings, Inc

Incidentdiscovered Jan 17, 2023

Stated responseEngaged forensic resources and third parties to assist in its evaluation of the intrusion

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov