Social EngineeringPhishingStolen CredentialsCustomer Data InvolvedMulti-Stage ChainPIIIdentity (basic)Government IDMediumContained

Marquette Management

bd_abba883db2b32220 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 4, 2018

Filed

Feb 7, 2019

To disclose

18 weeks

Affected

1state residents only

Linked

2 filings

Confidence

65%

Full breach record for Marquette Management →2 incidents on file

Marquette Management, Inc. notified Montana residents that an employee's email account was compromised on October 3-4, 2018, leading to the sending of phishing emails. Personal information including names and Social Security numbers was present in the account. The company reset passwords, engaged forensic experts, and provided one year of identity protection services.

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Incident timeline

undetected · 1 days

discovery → filing · 18 weeks / 126 days

Oct 3, 2018

Begins

Oct 4, 2018

Discovered

Feb 7, 2019

Filed

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

Massachusetts State AGbd_43261478d9df014e2019-02-07Verified

Name: Marquette Management
norm: marquette management

Name: Marquette Management
norm: marquette management

Discovered: Oct 4, 2018
Breach occurred: Oct 3, 2018 – Oct 4, 2018
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Feb 7, 2019
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)Government ID
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: phishing_link

During the incident: Launched an investigation
Engaged computer forensic experts
Reset the passwords for all email accounts
Reviewed company policies and procedures relating to data security
Notified potentially affected individuals
Arranged to have AllClear ID protect your identity for 1 year at no cost
Changes made: Reviewed company policies and procedures relating to data security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 weeks(126 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 ↗

Massachusetts State AGFeb 7 · first

Montana State AGFeb 7 · first · this page

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://dojmt.gov/wp-content/uploads/Marquette-Management-Consumer-Breach-Notification.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 7, 2019
Raw hash: 82d464a3a12bbd4e39756159262d964b2b0194e9ed02c4d1345eea92d4c3e1c0

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMarquette Management

Victim entityMarquette Management

Incidentdiscovered Oct 4, 2018

Stated responseLaunched an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov