HackingTechnologyInformationData ExfiltratedIdentity (basic)LowResolved

Terrier Media Buyer, Inc.

bd_dc3b2599ce6b8bf7 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jun 3, 2021

Filed

Oct 8, 2021

To disclose

18 weeks

Affected

11state residents only

Linked

9 filings

Confidence

66%

Full breach record for Terrier Media Buyer, Inc. →

Cox Media Group (dba Terrier Media Buyer, Inc.) notified Montana residents of a June 3, 2021 security incident where an unauthorized third party accessed a server containing HR personal information (names). The actor attempted to exfiltrate data but acquisition was not confirmed. FBI was notified, and affected individuals received credit monitoring services.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 18 weeks / 127 days

Jun 3, 2021

Begins

Jun 3, 2021

Discovered

Oct 8, 2021

Filed

vs. sector median

+7 wks slower

This filing is one of 9 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

Indiana State AGbd_0163e634ffa6f5e22021-10-08Verified
California State AGbd_7a462900aa4679d72021-10-08Verified
Massachusetts State AGbd_d8f4aa8696c223642021-10-08Verified
New Hampshire State AGbd_f42409412491ca282021-10-18 · +10dVerified

Show 4 more filings ↓up to 28d gap

Washington State AGbd_29839e00494e2ecb2021-10-28 · +20dCandidate
California State AGbd_03ea52157fe9b0612021-11-02 · +25dVerified
Maine State AGbd_9cae2e363ad0316d2021-11-02 · +25dVerified
New Hampshire State AGbd_ecba583908a8f00c2021-11-05 · +28dCandidate

Name: Terrier Media Buyer, Inc.
norm: terrier media buyer

Name: Terrier Media Buyer, Inc.
norm: terrier media buyer
Also named: Terrier Media Buyer, Inc.dba oflegal entity
Cox Media Groupdba oftrade name
Industry: Technologyllm

Discovered: Jun 3, 2021
Breach occurred: Jun 3, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 8, 2021
Affected individuals: 11state-resident count only
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified the FBI
Initial access: exploit_public_facing

During the incident: Took steps to secure our systems
Began a thorough investigation with the support of leading outside cybersecurity experts
Promptly notified the FBI of the incident
Cooperating with law enforcement to investigate this incident
Changes made: Implemented enhanced security controls
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 weeks(127 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 7 states

View merged incident ↗

Indiana State AGOct 8 · first

California State AGOct 8 · first

Massachusetts State AGOct 8 · first

Montana State AGOct 8 · first · this page

New Hampshire State AG+10d

Washington State AG+20d

California State AG+25d

Maine State AG+25d

New Hampshire State AG+28d

Pattern: first filing Oct 8 (IN), last Nov 5 (NH) — a 28-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/OCP/Data-Breach-Notification-22.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 8, 2021
Raw hash: 0e8b3c81e445dea9cd5b81addef18183897eba00adc9eef0e323bd7f7b99b427

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityTerrier Media Buyer, Inc.

Victim entityTerrier Media Buyer, Inc.

Incidentdiscovered Jun 3, 2021

Stated responseTook steps to secure our systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov