HackingFinancial ServicesFinanceStolen CredentialsCapture Stored DataSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Brown Brothers Harriman & Co

bd_65ac691fa66c3f10 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 1, 2022

Filed

May 11, 2022

To disclose

10 weeks

Affected

9state residents only

Linked

5 filings

Confidence

66%

Full breach record for Brown Brothers Harriman & Co →9 incidents on file

Brown Brothers Harriman & Co (BBH) notified clients that an unauthorized party extracted files containing personal information (name, address, SSN, account number) from third-party vendor R.R. Donnelley in December 2021. BBH discovered the issue in March 2022. BBH offered 36 months of credit monitoring and identity restoration via Experian.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 90 days

discovery → filing · 10 weeks / 71 days

Dec 1, 2021

Begins

Mar 1, 2022

Discovered

May 11, 2022

Filed

vs. sector median

+1 wks slower

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

Massachusetts State AGbd_6c6907641aea0fa22022-05-11Verified
Maine State AGbd_debebf402777b2672022-05-11Verified
New Hampshire State AGbd_5356339cda8f7cbb2022-05-16 · +5dVerified
Indiana State AGbd_c378eb3c17cb7c3f2022-05-23 · +12dVerified

Name: Brown Brothers Harriman & Co
norm: brown brothers harriman

Name: Brown Brothers Harriman & Co
norm: brown brothers harriman
Industry: Financial Servicesllm

Discovered: Mar 1, 2022
Breach occurred: Dec 1, 2021
Undetected for: 90 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 9state-resident count only
Data types: Identity (basic)Government IDFinancial account
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: Offering 36 months of complimentary identity restoration and credit monitoring services through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(71 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 AGMay 11 · first

Maine State AGMay 11 · first

Montana State AGMay 11 · first · this page

New Hampshire State AG+5d

Indiana State AG+12d

Pattern: first filing May 11 (MA), last May 23 (IN) — a 12-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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-341.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 11, 2022
Raw hash: d4b64c7f16d9e28aee8610f8001162af1fb7f88f012090c315b02cb057db689a

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityBrown Brothers Harriman & Co

Victim entityBrown Brothers Harriman & Co

Incidentdiscovered Mar 1, 2022

Stated responseOffering 36 months of complimentary identity restoration and credit monitoring services through Experian

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov