MalwareProfessional ServicesProfessional ServicesRansomwareData EncryptedCustomer Data InvolvedIdentity (basic)PIILowContained

GERSON LEHRMAN GROUP, INC.

bd_8477b7863a376585 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Mar 12, 2024

To disclose

—

Affected

Not disclosed

Linked

10 filings

Confidence

65%

Full breach record for GERSON LEHRMAN GROUP, INC. →2 incidents on file

Gerson Lehrman Group (GLG) experienced a ransomware incident on November 12, 2023, where an unauthorized third party accessed data from GLG's computer system. The incident potentially affected personal information including names and other elements. GLG activated its incident response plan, engaged cybersecurity firms, and is offering credit monitoring services to affected individuals. No evidence of misuse has been found.

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Incident timeline

Nov 12, 2023

Begins

Mar 12, 2024

Filed

This filing is one of 10 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (9) · sorted by filing gap

Oregon State AGbd_30321db2548f181f2024-03-12Candidate
Maine State AGbd_40f515c14974b0852024-03-12Verified
South Carolina State AGbd_5ed22e7a141700a52024-03-12Verified
California State AGbd_690a00405f09498b2024-03-12Verified

Show 5 more filings ↓up to 1d gap

Montana State AGbd_6a5c413bc2a8a1102024-03-12Verified by operator
Indiana State AGbd_7401d65ed4c18ce72024-03-12Verified
New Hampshire State AGbd_956c9ae2eb034ab42024-03-12Verified
Washington State AGbd_a6d110a2d0e028302024-03-12Verified
Massachusetts State AGbd_c965169beffea6d02024-03-13 · +1dVerified

Name: GERSON LEHRMAN GROUP, INC.
norm: gerson lehrman

Name: GERSON LEHRMAN GROUP, INC.
norm: gerson lehrman
Industry: Professional Servicesllm

Discovered: —
Breach occurred: Nov 12, 2023
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)PII
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: ExternalFinancial

During the incident: Activated our incident response plan
Engaged a national cybersecurity firm to assist in assessing the scope of the incident
Retained additional cybersecurity experts to aid us in reviewing and revising our security protocols and to harden our systems
Took steps to mitigate the potential impact of the incident
Changes made: Arranged for you to activate, at no cost to you, CyEx’s Identity Defense Total credit monitoring services
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 10 states

View merged incident ↗

Oregon State AGMar 12 · first

Maine State AGMar 12 · first

South Carolina State AGMar 12 · first

California State AGMar 12 · first

Montana State AGMar 12 · first

Indiana State AGMar 12 · first

New Hampshire State AGMar 12 · first

Washington State AGMar 12 · first

Vermont State AGMar 12 · first · this page

Massachusetts State AG+1d

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://ago.vermont.gov/document/2024-03-12-gerson-lehrman-group-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 12, 2024
Raw hash: 74107ac21545fc395714ab70aecf6f03a708f2266f2d9669f2d127a0123bc732

Linked disclosures

Regulatory filings (9) · sorted by filing gap

Reporting entityGERSON LEHRMAN GROUP, INC.

Victim entityGERSON LEHRMAN GROUP, INC.

IncidentRansomware

Stated responseActivated our incident response plan

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov