HackingTechnologyInformationData ExfiltratedTargetedPIIIdentity (basic)LowContained

Sourcemedia LLC

bd_90aa8710c8c42208 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 21, 2021

Filed

Mar 3, 2022

To disclose

41 weeks

Affected

1state residents only

Linked

5 filings

Confidence

65%

Full breach record for Sourcemedia LLC →

Sourcemedia LLC DBA Arizent notified Montana residents of unauthorized network access discovered on May 21, 2021. Unknown actors accessed the network between May 21 and July 27, 2021, potentially viewing or removing files containing names and other personal information. Arizent engaged law enforcement, implemented additional security measures, and offered credit monitoring via Experian.

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Incident timeline

discovery → filing · 41 weeks / 286 days

May 21, 2021

Begins

May 21, 2021

Discovered

Mar 3, 2022

Filed

vs. sector median

+30 wks slower

This filing is one of 5 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_412e737a52af14aa2022-03-03Verified
Maine State AGbd_f11e547d4c76dee32022-03-03Verified by operator
Indiana State AGbd_742c86586bf5f1cc2022-03-02 · +1dVerified
New Hampshire State AGbd_74e84040fcdd96ea2022-03-07 · +4dVerified

Name: Sourcemedia LLC
norm: sourcemedia

Name: Sourcemedia LLC
norm: sourcemedia
Also named: Sourcemedia, LLCdba oflegal entity
Arizentdba oftrade name
Industry: Technologyllm

Discovered: May 21, 2021
Breach occurred: May 21, 2021 – Jul 27, 2021
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 2, 2022
Affected individuals: 1state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: reported this incident to law enforcement and are cooperating with their investigationreporting to regulatory authorities, as required

During the incident: Took steps to confirm and strengthen the security of our systems
Continuously reviewing existing security policies
Implemented additional cybersecurity measures
Reported this incident to law enforcement and are cooperating with their investigation
Offering immediate access to credit monitoring and identity theft protection services for [Extra3] months at no cost to you, through Experian IdentityWorks
Changes made: Implemented additional cybersecurity measures to further protect against similar incidents moving forward
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 41 weeks(286 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGMar 2 · first

Massachusetts State AG+1d

Maine State AG+1d

Montana State AG+1d · this page

New Hampshire State AG+5d

Pattern: first filing Mar 2 (IN), last Mar 7 (NH) — a 5-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/Sourcemedia-LLC-DBA-Arizent-Consumer-Notification-Letter.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 3, 2022
Raw hash: 01b2931d1e8c816d23064c7a2bd39340cac91cabd34c37ad155f13749044644d

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entitySourcemedia LLC

Victim entitySourcemedia LLC

Incidentdiscovered May 21, 2021

Stated responseTook steps to confirm and strengthen the security of our systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov