HackingFinancial ServicesFinanceSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDMediumContained

Osiac (formerly Advisor Group)

bd_8570007ed50111a0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 17, 2023

Filed

Aug 17, 2023

To disclose

30 weeks

Affected

Not disclosed

Confidence

65%

Full breach record for Osiac (formerly Advisor Group) →2 incidents on file

Osiac notified California residents of a data breach involving a third-party vendor, R.R. Donnelley & Sons Company (RRD). RRD identified a systems intrusion on December 23, 2021, and notified Osiac on January 17, 2023. Personal information, including name, address, and potentially Social Security numbers, was exfiltrated from RRD's systems. The data originated from a 2019 regulatory mailing. Osiac is offering free identity theft protection services through Experian.

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California clockDiscovered Jan 17, 2023 → Notified Aug 9, 2023204d ✗ CA 60-day late30 weeks discovery → filing

Incident timeline

undetected · 390 days

discovery → filing · 30 weeks / 212 days

Dec 23, 2021

Begins

Jan 17, 2023

Discovered

Aug 17, 2023

Filed

vs. sector median

+21 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: Osiac (formerly Advisor Group)
norm: osiac formerly advisor
Domain: osaic.com

Name: Osiac (formerly Advisor Group)
norm: osiac formerly advisor
Domain: osaic.com
Industry: Financial Servicesllm

Discovered: Jan 17, 2023
Breach occurred: Dec 23, 2021
Undetected for: 390 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 9, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1041 Exfiltration Over C2 Channel
Threat actor: External
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
Worked with RRD to ensure it has implemented proper data protection safeguards
Arranged for enrollment in Experian IdentityWorks at no cost
Changes made: Implemented proper data protection safeguards to better protect against future incidents
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 30 weeks(212 days from discovery to filing)
Compliance flags: CA 60-day late · 204d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Jan 17, 2023
→ Notified: Aug 9, 2023
204d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Jan 17, 2023 → Notified: Aug 9, 2023	204d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

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://oag.ca.gov/ecrime/databreach/reports/sb24-572025
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 17, 2023
Raw hash: 04ca1fdf2b48269d49d69c00ebcd14f252930aed6de13f08cddfe65cb69dee04

Reporting entityOsiac (formerly Advisor Group)

Victim entityOsiac (formerly Advisor Group)

Incidentdiscovered Jan 17, 2023

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

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov