HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Klein Landau & Edelman

bd_b50b5c6409b98230 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 5, 2025

Filed

Apr 2, 2025

To disclose

28 days

Affected

Not disclosed

Confidence

65%

Full breach record for Klein Landau & Edelman →

Klein Landau & Edelman disclosed that an unauthorized third party accessed certain email accounts between Feb 26 and Mar 5, 2025. The incident exposed names, dates of birth, SSNs, and financial account information. The firm changed passwords, engaged experts, and offers 24 months of credit monitoring.

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Vermont clock⏱ VT AG >14 bday28 days 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 · 7 days

discovery → filing · 28 days

Feb 26, 2025

Begins

Mar 5, 2025

Discovered

Apr 2, 2025

Filed

vs. sector median

15 wks faster

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

Name: Klein Landau & Edelman
norm: klein landau edelman

Name: Klein Landau & Edelman
norm: klein landau edelman
Industry: Professional Servicesllm

Discovered: Mar 5, 2025
Breach occurred: Feb 26, 2025 – Mar 5, 2025
Undetected for: 7 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 2, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Changed passwords
Initiated an investigation with the assistance of legal and security experts
Conducted a review of all emails that were accessible to the third party
Providing you with access to 24 months of credit monitoring and identity restoration services through Experian at no charge
Changes made: Working closely with security and legal experts to enhance existing security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: VT AG >14 bday
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.

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/2025-04-02-klein-landau-edelman-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 2, 2025
Raw hash: ebb17973e78055a38a9d8cc2addea48a932e93c44953b0f084d07b8a0a31d47a

Reporting entityKlein Landau & Edelman

Victim entityKlein Landau & Edelman

Incidentdiscovered Mar 5, 2025

Stated responseChanged passwords

ComplianceVT AG >14 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov