Cornerstone Building Brands, Inc.

Cornerstone Building Brands, Inc. notified California AG on Sep 11, 2019 of a data breach, which occurred on Apr 2, 2019.

Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization: Cornerstone Building Brands, Inc.
Source: California AG · source record
Date reported: Sep 11, 2019
Date(s) of breach: Monday, April 1, 2019Tuesday, April 2, 2019
Residents affected: Not published by this source
Data exposed: Not stated in the source listing
Notice letter: Sample notice (PDF)
Days to notice: 162 days from the end of the breach window (Apr 2, 2019, no discovery date in the letter) to the California record (Sep 11, 2019). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
Offered in the letter: 12 months of credit or identity monitoring through Experian
First seen by BreachTally: 2026-10-30 16:12 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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