HackingCustomer Data InvolvedFinancial accountFinancial credentialsMediumContained

Macmillan and its affiliates (“Macmillan”)

bd_9b71d84bd97135a0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 1, 2022

Filed

Dec 1, 2022

To disclose

4 weeks

Affected · nationwide

19,17837 in this filing

Confidence

50%

Full breach record for Macmillan and its affiliates (“Macmillan”) →

Macmillan and its affiliates reported a data breach to the Maine Attorney General, which was discovered on November 1, 2022. The breach, described as an external system breach (hacking), occurred between June 16, 2022, and June 25, 2022. The incident affected 37 Maine residents, and a total of 19,178 individuals. The compromised information included names or other personal identifiers in combination with financial account numbers or credit/debit card numbers along with their security codes, access codes, passwords, or PINs. Affected individuals were notified on December 1, 2022, and offered 24 months of credit monitoring and identity restoration services through Experian.

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Maine clockDiscovered Nov 1, 2022 → Filed with AG Dec 1, 202230d ✓ ME AG ≤30d4 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 138 days

discovery → filing · 4 weeks / 30 days

Jun 16, 2022

Begins

Nov 1, 2022

Discovered

Dec 1, 2022

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed19,178 affectedView incident

Name: Macmillan and its affiliates (“Macmillan”)
norm: macmillan and its affiliates macmillan

Name: Macmillan and its affiliates (“Macmillan”)
norm: macmillan and its affiliates macmillan

Discovered: Nov 1, 2022
Breach occurred: Jun 16, 2022 – Jun 25, 2022
Undetected for: 138 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 1, 2022
Affected individuals: 19,178state + nationwide
Data types: Financial accountFinancial credentials
Data elements: Financial account number
Attack vector: Unauthorized Access
Threat actor: ExternalFinancial

Changes made: Offered 24 months of credit monitoring and identity restoration services through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: ME AG ≤30d · 30d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Nov 1, 2022
→ Filed with AG: Dec 1, 2022
30d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Nov 1, 2022 → Filed with AG: Dec 1, 2022	30d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/448bcb06-fbdb-450f-9cfb-a3679833b80c.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 1, 2022
Raw hash: ac678187bd92e6f6f76d27fc4baf5158e9019cbfcfad91b3c8ee58e78b1919fa

Reporting entityMacmillan and its affiliates (“Macmillan”)

Victim entityMacmillan and its affiliates (“Macmillan”)

Incidentdiscovered Nov 1, 2022

Stated responseOffered 24 months of credit monitoring and identity restoration services through Experian

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov