Social EngineeringProfessional ServicesProfessional ServicesPhishingTargetedEmployee Data InvolvedIdentity (basic)Government IDEmploymentMediumActive

MATRIX SERVICE COMPANY

bd_6c275496666be0f6 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 29, 2016

Filed

Mar 11, 2016

To disclose

11 days

Affected

4state residents only

Linked

2 filings

Confidence

65%

Full breach record for MATRIX SERVICE COMPANY →

Matrix Service notified employees of a targeted spear-phishing incident in Feb 2016. An employee was tricked into sending a spreadsheet containing PII (names, SSNs, DOBs, salary) to the attacker. FBI and IRS were notified. Affected individuals received one year of Equifax credit monitoring.

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Incident timeline

undetected · 26 days

discovery → filing · 11 days

Feb 3, 2016

Begins

Feb 29, 2016

Discovered

Mar 11, 2016

Filed

vs. sector median

17 wks faster

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

New Hampshire State AGbd_65eedd1401ce112e2016-03-11Verified

Name: MATRIX SERVICE COMPANY
norm: matrix service

Name: MATRIX SERVICE COMPANY
norm: matrix service
Industry: Professional Servicesllm

Discovered: Feb 29, 2016
Breach occurred: Feb 3, 2016
Undetected for: 26 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 11, 2016
Affected individuals: 4state-resident count only
Data types: Identity (basic)Government IDEmployment
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified the FBINotified the IRSIRS indicated they will monitor affected employees' accounts
Initial access: phishing_link

During the incident: Notified the FBI and the IRS
Cooperating with their ongoing investigation
Partnered with Equifax to provide Credit Watch Gold with 3-in-1 Monitoring identity theft protection product for one year at no charge
Changes made: Reinforcing information security training program with an emphasis on the detection and avoidance of phishing email scams
Identifying opportunities to increase security within information technology systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 11 days(11 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 ↗

New Hampshire State AGMar 11 · first

Montana State AGMar 11 · 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/Matrix-Service-Company.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 11, 2016
Raw hash: 9da0e811f6622204fc8a6ae3e99e8340d4be94c22b2f05a4a10f3b9297a6b222

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMATRIX SERVICE COMPANY

Victim entityMATRIX SERVICE COMPANY

Incidentdiscovered Feb 29, 2016

Stated responseNotified the FBI and the IRS

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov