Social EngineeringFinancial ServicesFinancePhishingData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDMediumResolved

Kosmos Management, LLC

bd_863d212594e6403f · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 4, 2025

Filed

Jan 2, 2026

To disclose

47 weeks

Affected

1state residents only

Linked

2 filings

Confidence

67%

Full breach record for Kosmos Management, LLC →2 incidents on file

Kosmos Management LLC notified the New Hampshire Attorney General of a cybersecurity incident discovered on February 4, 2025, involving unauthorized access to employee email accounts via phishing. The breach affected one New Hampshire resident, exposing names, Social Security numbers, and driver's license numbers. Kosmos engaged third-party investigators, secured the email tenant, and sent notification letters offering 12 months of credit monitoring. The investigation is complete.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 47 weeks / 332 days

Feb 4, 2025

Discovered

Jan 2, 2026

Filed

vs. sector median

+39 wks slower

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_ea85663b13db54c02025-12-26 · +7dCandidate

Name: Cipriani
norm: cipriani
Domain: cipriani.com

Name: Kosmos Management, LLC
norm: kosmos management
Industry: Financial Servicesllm

Discovered: Feb 4, 2025
Materiality determined: —
Notification sent: Dec 26, 2025
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General Consumer Protection Bureau
Initial access: phishing_link

During the incident: Took steps to secure its email tenant
Engaged third-party computer specialists to investigate the full nature and scope of the incident
Began a thorough review of the potentially impacted data
Provided written notice of this incident to an initial wave of impacted individuals
Sent written notice of this incident to the potentially impacted New Hampshire resident
Provided an offer of complimentary credit monitoring and identity theft protection services for twelve (12) months
Changes made: Provided access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 47 weeks(332 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Indiana State AGDec 26 · first

New Hampshire State AG+7d · this page

Pattern: first filing Dec 26 (IN), last Jan 2 (NH) — a 7-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/kosmos-management-20260102.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 2, 2026
Raw hash: e1050723b8812aa82d8b6fd9ccbc6901a2f25df1d79fcbe1e7257ccba98287d2

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCipriani

Victim entityKosmos Management, LLC

Incidentdiscovered Feb 4, 2025

Stated responseTook steps to secure its email tenant

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov