Macmillan and its affiliates (“Macmillan”)

Macmillan and its affiliates (“Macmillan”) notified California AG on Dec 20, 2022 of a data breach, which occurred on Jun 25, 2022. Data exposed: Postal address.

All 2 filings by Macmillan and its affiliates (“Macmillan”), state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization: Macmillan and its affiliates (“Macmillan”)
Source: California AG · source record
Date reported: Dec 20, 2022
Date(s) of breach: Thursday, June 16, 2022Saturday, June 25, 2022
Residents affected: Not published by this source
Data exposed: Postal address
Notice letter: Sample notice (PDF)
Discovered: Nov 1, 2022, as stated in the letter
"On November 1, 2022, we concluded the review and determined that the information at issue included some personal information."
Days to notice: 49 days from discovery (Nov 1, 2022) to the California record (Dec 20, 2022). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
Offered in the letter: 24 months of credit or identity monitoring through Experian
Third party: The letter attributes the incident to a vendor or service provider
First seen by BreachTally: 2026-10-30 16:00 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

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Other filings by Macmillan and its affiliates (“Macmillan”)

Organization	Source	State	Reported	Residents affected	Data exposed
Macmillan and its affiliates (“Macmillan”)	California AG	CA	Dec 1, 2022	Not published	Postal address

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.