HackingTelecom & MediaInformationCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDMediumContained

Arcadia Publishing, Inc

bd_3cfc2141bc9571ce · 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

65%

Full breach record for Arcadia Publishing, Inc →

Arcadia Publishing, Inc. reported unauthorized access to certain files and folders within its systems from March 6, 2023, through April 19, 2023. The company became aware of suspicious activity on April 19, 2023. The investigation determined that names and Social Security numbers of California residents were potentially accessed. Arcadia engaged in system restoration, forensic investigation, and file review. Affected individuals are offered 12 months of complimentary identity monitoring through Kroll. The company is reviewing policies and implementing additional safeguards.

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California clockDiscovered Apr 19, 2023 → Notified Aug 18, 2023121d ✗ CA 60-day late24 weeks discovery → filing

Incident timeline

undetected · 44 days

discovery → filing · 24 weeks / 168 days

Mar 6, 2023

Begins

Apr 19, 2023

Discovered

Oct 4, 2023

Filed

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

Montana State AGbd_5afcc48675649bc02023-10-04Verified
Vermont State AGbd_7b81b35e181b1bf32023-10-04Verified
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: Telecom & Mediallm

Discovered: Apr 19, 2023
Breach occurred: Mar 6, 2023 – Apr 19, 2023
Undetected for: 44 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 18, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Launched an investigation to determine the nature and scope of the incident
Worked to restore our systems
Undertook a comprehensive programmatic and manual review of the potentially accessed files
Notified potentially affected individuals
Offering you access to twelve (12) months of complimentary identity monitoring services through Kroll at no cost to you
Changes made: Reviewing our existing policies and procedures
Implement additional administrative and technical safeguards to further secure the information on our systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 weeks(168 days from discovery to filing)
Compliance flags: CA 60-day late · 121d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Apr 19, 2023
→ Notified: Aug 18, 2023
121d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Apr 19, 2023 → Notified: Aug 18, 2023	121d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Montana State AGOct 4 · first

Vermont State AGOct 4 · first

Indiana State AGOct 4 · first

Maine State AGOct 4 · first

Massachusetts State AGOct 4 · first

California 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://oag.ca.gov/ecrime/databreach/reports/sb24-574649
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: b42802b3d25906d6cf31ab02e8610cdfa75d4863a0e67ef0c52df0eb5528a5df

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityArcadia Publishing, Inc

Victim entityArcadia Publishing, Inc

Incidentdiscovered Apr 19, 2023

Stated responseLaunched an investigation to determine the nature and scope of the incident

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov