HackingTechnologyInformationDelayed DiscoveryIdentity (basic)Government IDMediumContained

Arcadia Publishing, Inc

bd_7b81b35e181b1bf3 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 19, 2023

Filed

Oct 4, 2023

To disclose

24 weeks

Affected

Not disclosed

Linked

6 filings

Confidence

66%

Full breach record for Arcadia Publishing, Inc →

Arcadia Publishing, Inc. notified consumers of a security incident where unauthorized access occurred between March 6 and April 19, 2023. The breach exposed personal information including names and government identifiers. Arcadia engaged in investigation, restored systems, and offered 12 months of identity monitoring via Kroll. The investigation was completed in August 2023.

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Vermont clock✗ VT AG >45 bday24 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 44 days

discovery → filing · 24 weeks / 168 days

Mar 6, 2023

Begins

Apr 19, 2023

Discovered

Oct 4, 2023

Filed

vs. sector median

+5 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

California State AGbd_3cfc2141bc9571ce2023-10-04Candidate
Montana State AGbd_5afcc48675649bc02023-10-04Verified
Indiana State AGbd_9d3798c8ba6936872023-10-04Verified
Maine State AGbd_a48c88ef2a51812d2023-10-04Verified by operator

Show 1 more filing ↓

Massachusetts State AGbd_cc7180aaf2328e7e2023-10-04Verified

Name: Arcadia Publishing, Inc
norm: arcadia publishing

Name: Arcadia Publishing, Inc
norm: arcadia publishing
Industry: Technologyllm

Discovered: Apr 19, 2023
Breach occurred: Mar 6, 2023 – Apr 19, 2023
Undetected for: 44 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 4, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Moved quickly to investigate and respond to the incident
Assessed the security of our systems
Restored functionality to the environment
Notified potentially affected individuals
Offering twelve (12) months of complimentary identity monitoring services through Kroll
Changes made: Reviewing existing policies and procedures
Implementing additional administrative and technical safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 weeks(168 days from discovery to filing)
Compliance flags: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

California State AGOct 4 · first

Montana State AGOct 4 · first

Indiana State AGOct 4 · first

Maine State AGOct 4 · first

Massachusetts State AGOct 4 · first

Vermont State AGOct 4 · 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://ago.vermont.gov/document/2023-10-04-arcadia-publishing-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 4, 2023
Raw hash: a4d153bc266855064d5bb02e9f38ab7af2ea8bd6f7526f17d713f1310b7b9a94

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityArcadia Publishing, Inc

Victim entityArcadia Publishing, Inc

Incidentdiscovered Apr 19, 2023

Stated responseMoved quickly to investigate and respond to the incident

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov