HackingTechnologyRetail & ConsumerInformationStolen CredentialsData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)Financial accountMediumContained

Lincoln Holdings LLC

bd_358f46ea97aa73ac · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 9, 2025

Filed

Apr 27, 2026

To disclose

20 weeks

Affected

8state residents only

Linked

6 filings

Confidence

66%

Full breach record for Lincoln Holdings LLC →

Lincoln Holdings LLC (dba Monumental Sports & Entertainment) notified the NH AG of a breach affecting 8 NH residents. Unauthorized access occurred Dec 8-9, 2025, resulting in exfiltration of names, SSNs, financial account/payment card info, and government IDs. Discovered Dec 9, 2025. Notifications sent starting April 28, 2026. No identity misuse identified.

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Incident timeline

undetected · 1 days

discovery → filing · 20 weeks / 139 days

Dec 8, 2025

Begins

Dec 9, 2025

Discovered

Apr 27, 2026

Filed

vs. sector median

+1 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Maine State AGbd_88360644771077932026-04-27Candidate
Massachusetts State AGbd_8eec767369f522342026-04-27Verified
Vermont State AGbd_c84e5c9c10c44bf12026-04-27Verified
Indiana State AGbd_e3b87a3238d35fe42026-04-28 · +1dVerified

Show 1 more filing ↓up to 1d gap

Nebraska State AGbd_e76036550d2f6d4c2026-04-28 · +1dVerified

Name: Ashden Fein, Counsel for Lincoln Holdings LLC
norm: ashden fein counsel for lincoln

Name: Lincoln Holdings LLC
norm: lincoln holdings
Also named: Lincoln Holdings LLCdba oflegal entity
Monumental Sports & Entertainmentdba oftrade name
Industry: TechnologyllmRetail & Consumerllm

Discovered: Dec 9, 2025
Breach occurred: Dec 8, 2025 – Dec 9, 2025
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Apr 28, 2026
Affected individuals: 8state-resident count only
Data types: Government IDIdentity (basic)Financial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Initial access: valid_credentials

During the incident: Took steps to contain it
Launched an investigation with the support of external cybersecurity specialists
Enhanced security measures to protect individuals’ data
Worked closely with law enforcement
Conducted a technical analysis of the impacted systems
Started a process to review the data to identify individuals whose personal information may have been impacted
Taken available measures to limit the potential that data may be misused in the future
Notify eight individuals who are residents of New Hampshire by first-class mail
Changes made: Enhanced security measures to protect individuals’ data
Taken available measures to limit the potential that data may be misused in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 weeks(139 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Maine State AGApr 27 · first

Massachusetts State AGApr 27 · first

Vermont State AGApr 27 · first

New Hampshire State AGApr 27 · first · this page

Indiana State AG+1d

Nebraska 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://mm.nh.gov/files/uploads/doj/remote-docs/lincoln-holdings-monumental-sports-entertainment-20260427.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 27, 2026
Raw hash: ed0e187c4ceb13df7a5a6fa0c15743b7e8314cfeacec88b6d98802eb9810e653

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityAshden Fein, Counsel for Lincoln Holdings LLC

Victim entityLincoln Holdings LLC

Incidentdiscovered Dec 9, 2025

Stated responseTook steps to contain it

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov