HackingProfessional ServicesProfessional ServicesStolen CredentialsCapture Stored DataData ExfiltratedCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountFinancial credentialsAuthenticationHealth (basic)PIIMediumContained

Berkeley Research Group, LLC

bd_6c0354305e3a6be4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 2, 2025

Filed

Oct 30, 2025

To disclose

35 weeks

Affected

15state residents only

Linked

18 filings

Confidence

66%

Full breach record for Berkeley Research Group, LLC →2 incidents on file

Berkeley Research Group, LLC notified Washington AG of a data breach where an unauthorized actor accessed systems from Feb 28 to Mar 2, 2025, copying data from 15 WA residents. Affected data included PII, SSNs, financial accounts, and health info. BRG contained the incident, engaged forensic professionals, and offered 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Washington clock✗ WA AG >90d35 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 2 days

discovery → filing · 35 weeks / 242 days

Feb 28, 2025

Begins

Mar 2, 2025

Discovered

Oct 30, 2025

Filed

vs. sector median

+16 wks slower

This filing is one of 18 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Indiana State AGbd_06ebefc7f97e85ca2025-10-30Verified
Delaware State AGbd_2a046fc71456eb422025-10-30Verified
Maine State AGbd_2c1bbb217d4cbdd92025-10-30Verified
Iowa State AGbd_6dba8563613846962025-10-30Candidate

Show 6 more filings ↓up to 306d gap

Nebraska State AGbd_75486d11005381ae2025-10-30Verified
New Hampshire State AGbd_8e1428d30760a8be2025-11-03 · +4dVerified
Texas State AGbd_2fde5d09d3ecf17e2025-11-04 · +5dVerified
California State AGbd_43485585b80a53ad2026-08-31 · +305dVerified
Vermont State AGbd_588a69c301064b742026-08-31 · +305dVerified
Texas State AGbd_ae2de8dfc27206ea2026-09-01 · +306dVerified

Showing first 10 of 17 linked disclosures.

Name: Berkeley Research Group, LLC
norm: berkeley research

Name: Berkeley Research Group, LLC
norm: berkeley research
Industry: Professional Servicesllm

Discovered: Mar 2, 2025
Breach occurred: Feb 28, 2025 – Mar 2, 2025
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 24, 2025
Affected individuals: 15state-resident count only
Data types: Identity (basic)Government IDFinancial accountFinancial credentialsAuthenticationHealth (basic)PII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: reporting this matter to additional authoritiescooperating with federal law enforcement
Initial access: valid_credentials

During the incident: Launched an investigation with the assistance of leading data security and privacy professionals
Deployed containment measures, including enhanced endpoint threat detection
Rotating user credentials
Rebuilding impacted systems
Cooperating with federal law enforcement throughout its investigation and response
Reporting this matter to additional authorities
Posted a notice about the incident on its website
Initiated providing written notification via regular mail
Offered twenty-four (24) months of credit-monitoring offered at no charge
Secured the services of Kroll to provide identity monitoring
Changes made: Deployed enhanced endpoint threat detection
Rotated user credentials
Rebuilt impacted systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 35 weeks(242 days from discovery to filing)
Compliance flags: WA AG >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 10 states

View merged incident ↗

Indiana State AGOct 30 · first

Delaware State AGOct 30 · first

Maine State AGOct 30 · first

Iowa State AGOct 30 · first

Nebraska State AGOct 30 · first

Washington State AGOct 30 · first · this page

New Hampshire State AG+4d

Texas State AG+5d

California State AG+305d

Vermont State AG+305d

Texas State AG+306d

Pattern: first filing Oct 30 (IN), last Sep 1 (TX) — a 306-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 17 — the full spread may be wider.

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA35277.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 30, 2025
Raw hash: fc55ff13d7333c36ff003d1d101309e8a4937eb4beab9d18b1e91b11a6a22108

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityBerkeley Research Group, LLC

Victim entityBerkeley Research Group, LLC

Incidentdiscovered Mar 2, 2025

Stated responseLaunched an investigation with the assistance of leading data security and privacy professionals

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com