HackingFinancial ServicesFinanceStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Brown Brothers Harriman & Co

bd_5356339cda8f7cbb · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 1, 2022

Filed

May 16, 2022

To disclose

11 weeks

Affected

66state 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 the New Hampshire Attorney General of a data security incident involving its third-party vendor, R.R. Donnelley. In March 2022, BBH learned that an unauthorized party had extracted BBH files from RRD's environment following a December 2021 intrusion at RRD. The breach affected approximately 66 New Hampshire residents, exposing names, addresses, Social Security numbers, and account numbers. BBH provided 36 months of credit monitoring and identity restoration services to affected individuals.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 90 days

discovery → filing · 11 weeks / 76 days

Dec 1, 2021

Begins

Mar 1, 2022

Discovered

May 16, 2022

Filed

vs. sector median

+2 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

Montana State AGbd_65ac691fa66c3f102022-05-11 · +5dCandidate
Massachusetts State AGbd_6c6907641aea0fa22022-05-11 · +5dVerified
Maine State AGbd_debebf402777b2672022-05-11 · +5dVerified
Indiana State AGbd_c378eb3c17cb7c3f2022-05-23 · +7dVerified

Name: Hunton Andrews Kurth LLP
norm: hunton andrews kurth

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: May 23, 2022
Affected individuals: 66state-resident count only
Data types: Identity (basic)Government IDFinancial account
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
Regulator citations: Notified New Hampshire Attorney General
Third party: via R.R. Donnelley & Sons Company
Initial access: supply_chain

During the incident: Reviewed affected files to determine what personal information was contained
Arranged to provide affected individuals with thirty-six (36) months of identity restoration and credit monitoring services at no cost
Sent notification to the New Hampshire Attorney General
Sent notice to affected individuals
Changes made: Provided thirty-six (36) months of identity restoration and credit monitoring services through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 11 weeks(76 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 ↗

Montana State AGMay 11 · first

Massachusetts State AGMay 11 · first

Maine State AGMay 11 · first

New Hampshire State AG+5d · this page

Indiana State AG+12d

Pattern: first filing May 11 (MT), 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://mm.nh.gov/files/uploads/doj/remote-docs/brown-brothers-harriman-20220516.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 16, 2022
Raw hash: dd96cc08ed3339c8b272590f7ce8a232b9db6d404f976fabae5d59a2e353b310

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityHunton Andrews Kurth LLP

Victim entityBrown Brothers Harriman & Co

Incidentdiscovered Mar 1, 2022

Stated responseReviewed affected files to determine what personal information was contained

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov