MalwareTransportation & LogisticsTransportationRansomwareData EncryptedSupply Chain (3P Vendor)Customer Data InvolvedPIIIdentity (basic)LowContained

Hallmark Aviation Services, LP

bd_f5ce558003ef192e · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 3, 2022

Filed

Sep 29, 2022

To disclose

34 weeks

Affected

Not disclosed

Linked

4 filings

Confidence

64%

Full breach record for Hallmark Aviation Services, LP →

Hallmark Aviation Services, LP notified customers of a data breach involving a third-party vendor. An unauthorized individual accessed the vendor's systems between February 1-3, 2022, encrypting networks and servers. The vendor detected suspicious activity on February 3, 2022. Personal information was potentially impacted. Hallmark engaged cybersecurity experts and law enforcement, took systems offline, and is offering identity protection services.

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California clockDiscovered Feb 3, 2022 → Notified Sep 29, 2022238d ✗ CA 60-day late34 weeks discovery → filing

Incident timeline

undetected · 2 days

discovery → filing · 34 weeks / 238 days

Feb 1, 2022

Begins

Feb 3, 2022

Discovered

Sep 29, 2022

Filed

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

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_2bcbe9bdf880c9d12022-09-29Verified
Indiana State AGbd_6cc1714eb34a674f2022-09-29Verified
Montana State AGbd_2089e3cd18dcdb0b2022-09-30 · +1dVerified

Name: Hallmark Aviation Services, LP
norm: hallmark aviation

Name: Hallmark Aviation Services, LP
norm: hallmark aviation
Industry: Transportation & Logisticsllm

Discovered: Feb 3, 2022
Breach occurred: Feb 1, 2022 – Feb 3, 2022
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 29, 2022
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: External
Third party: via Vendor

During the incident: Launched a comprehensive investigation with the assistance of cybersecurity experts
Engaged with law enforcement
Removed the unauthorized user
Took affected servers offline
Conducted a thorough review of impacted information
Changes made: Took steps to further secure systems to prevent an incident like this in the future
Continues to make additional improvements that strengthen cybersecurity protections
Continues to monitor for any unauthorized use of personal information
Offering complimentary Experian IdentityWorks membership
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 34 weeks(238 days from discovery to filing)
Compliance flags: CA 60-day late · 238d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Feb 3, 2022
→ Notified: Sep 29, 2022
238d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Feb 3, 2022 → Notified: Sep 29, 2022	238d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Massachusetts State AGSep 29 · first

Indiana State AGSep 29 · first

California State AGSep 29 · first · this page

Montana 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://oag.ca.gov/ecrime/databreach/reports/sb24-557749
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 29, 2022
Raw hash: 3a5cc92a94589450af8bf824c9c62bdb9b51ff0a43a4530d0e689120e69859fd

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityHallmark Aviation Services, LP

Victim entityHallmark Aviation Services, LP

Incidentdiscovered Feb 3, 2022

Stated responseLaunched a comprehensive investigation with the assistance of cybersecurity experts

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov