FEDERALItem 1.05 · mandatoryUnauthorized AccessRetail & ConsumerRetailAuto Parts RetailLowActive

MarineMax, Inc.

bd_8a1ed142962d25ff · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 10, 2024

Filed

Mar 12, 2024

To disclose

2 days

Affected

Not disclosed

Linked

13 filings

Confidence

83%

Full breach record for MarineMax, Inc. →

On March 10, 2024, MarineMax, Inc. determined that a third party gained unauthorized access to portions of its information environment. The company initiated incident response and business continuity protocols, took containment measures (which caused some business disruption), engaged cybersecurity experts, and notified law enforcement. The company states it does not maintain sensitive data in the impacted environment. Investigation is ongoing; no material impact determined as of filing.

J jump to incidentP pin to compareR raw source

SEC clockMateriality determined Mar 10, 2024 → Filed Mar 12, 20242d ✓ SEC 4-day OK2 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

discovery → filing · 2 days

Mar 10, 2024

Discovered

Mar 12, 2024

Filed

vs. sector median

7 wks faster

This filing is one of 13 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siterhysidabd_10eff69160530f442024-03-20 · +9dVerified by operator

Regulatory filings (9) · sorted by filing gap

SEC 8-Kbd_f40953669866c89c2024-04-01 · +20dVerified
Indiana State AGbd_0f878f76066c5f222024-07-16 · +126dVerified by operator
Massachusetts State AGbd_1172f515803033fd2024-07-16 · +126dVerified by operator
South Carolina State AGbd_1e2d33b188b249382024-07-16 · +126dVerified

Show 5 more filings ↓up to 126d gap

New Hampshire State AGbd_29639741801d07d32024-07-16 · +126dVerified by operator
Vermont State AGbd_8fa0e6de8ec422e12024-07-16 · +126dVerified by operator
Maine State AGbd_a019d7e057c3ca542024-07-16 · +126dVerified
California State AGbd_f6e3aae64c5b56982024-07-16 · +126dVerified by operator
Montana State AGbd_fb1d2c8bf0d356b12024-07-16 · +126dVerified by operator

Showing first 10 of 12 linked disclosures.

Name: MarineMax, Inc.
norm: marinemax
SEC CIK: 0001057060
Domain: marinemax.com
Industry: Retail - Recreational Boats

Name: MarineMax, Inc.
norm: marinemax
SEC CIK: 0001057060
Domain: marinemax.com
Industry: Retail - Recreational Boats
Industry: Retail & Consumerllm
NAICS 441330 · Automotive Parts and Accessories Retailers

Discovered: Mar 10, 2024
Materiality determined: Mar 10, 2024
Notification sent: —
Affected individuals: Not disclosed
Data types: —
Attack vector: Unauthorized Access
Threat actor: External
Regulator citations: Filed Form 8-K Item 1.05 with the SECNotified law enforcement authorities

During the incident: Initiated its previously determined incident response and business continuity protocols
Took immediate measures to contain the incident
Engaged cybersecurity expertise
Notified law enforcement authorities
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 2 days(2 days from discovery to filing)
Compliance flags: SEC 4-day OK · 2d
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.
Clock breakdown: Statute Window Elapsed Threshold Status
SEC
Materiality determined: Mar 10, 2024
→ Filed: Mar 12, 2024
2d cal. 4 business days SEC 4-day OK

Statute	Window	Elapsed	Threshold	Status
SEC	Materiality determined: Mar 10, 2024 → Filed: Mar 12, 2024	2d cal.	4 business days	SEC 4-day OK

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 8 states

View merged incident ↗

SEC 8-KMar 12 · first · this page

SEC 8-K+20d

Indiana State AG+126d

Massachusetts State AG+126d

South Carolina State AG+126d

New Hampshire State AG+126d

Vermont State AG+126d

Maine State AG+126d

California State AG+126d

Montana State AG+126d

Pattern: first filing Mar 12, last Jul 16 (MT) — a 126-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 12 — the full spread may be wider.

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 filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statementThis record

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.sec.gov/Archives/edgar/data/1057060/000095017024030041/hzo-20240310.htm
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Mar 12, 2024
Raw hash: 1226e580ee13fe8bad18f36f4101afe5f2f46c6b59e4c123c1d55c06a5347fe3

AI-assisted summary above. The structured extract on this page was generated from the document below. Inspect the source to verify or correct any field.

text/html46.8 KB

Download View at source

Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entityMarineMax, Inc.

Victim entityMarineMax, Inc.

Incidentdiscovered Mar 10, 2024

Stated responseInitiated its previously determined incident response and business continuity protocols

ComplianceSEC 4-day OK

Extraction provenanceno artifact recorded

Source provenancewww.sec.gov

Source filing