HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDMediumContained

CHATHAM ASSET MANAGEMENT, LLC

bd_8c730bb73ac5060c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 8, 2025

Filed

Jan 20, 2026

To disclose

6 weeks

Affected

Not disclosed

Linked

4 filings

Confidence

68%

Full breach record for CHATHAM ASSET MANAGEMENT, LLC →2 incidents on file

Chatham Asset Management, LLC reported unauthorized network activity discovered on December 8, 2025. The incident potentially exposed personal information including names and government identifiers. The company engaged forensic experts, notified law enforcement, and provided credit monitoring services to affected individuals.

J jump to incidentP pin to compareR raw source

Vermont clock⏱ VT AG >14 bday6 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

discovery → filing · 6 weeks / 43 days

Dec 8, 2025

Discovered

Jan 20, 2026

Filed

vs. sector median

3 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteworldleaksbd_d1d7d80084f442322025-12-23 · +28dVerified by operator

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_86629013df16e40d2026-01-20Verified by operator
Indiana State AGbd_7ab3737255edaa5f2026-01-15 · +5dCandidate

Name: CHATHAM ASSET MANAGEMENT, LLC
norm: chatham asset management
Domain: chathamasset.com

Name: CHATHAM ASSET MANAGEMENT, LLC
norm: chatham asset management
Domain: chathamasset.com
Industry: Financial Servicesllm

Discovered: Dec 8, 2025
Materiality determined: —
Notification sent: Jan 20, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified law enforcement
Initial access: valid_credentials

During the incident: Secured and remediated the compromise
Engaged additional third-party experts
Hardened and enhanced data security
Commenced an investigation
Notified law enforcement
Arranged for complimentary credit monitoring and identity restoration services
Changes made: Hardened and enhanced data security
Focused on continuous awareness training and assessment of data security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(43 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.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Indiana State AGJan 15 · first

Massachusetts State AG+5d

Vermont State AG+5d · this page

Pattern: first filing Jan 15 (IN), last Jan 20 (VT) — a 5-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://ago.vermont.gov/document/2026-01-20-chatham-asset-management-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 20, 2026
Raw hash: 5c79929c3c714f6c97a5c3a51eba2de4ac9b7c0ec0b126e27daecc38d80fb79a

Linked disclosures

Ransomware claims (1)

Regulatory filings (2) · sorted by filing gap

Reporting entityCHATHAM ASSET MANAGEMENT, LLC

Victim entityCHATHAM ASSET MANAGEMENT, LLC

Incidentdiscovered Dec 8, 2025

Stated responseSecured and remediated the compromise

ComplianceVT AG >14 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov