Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Cornerstone Building Brands

Disclosed Sep 11, 201911,185 affectedConfirmed

Official notice

What is known

People affected11,185 (as reported by the organization)
DisclosedSep 11, 2019
HappenedApr 1, 2019
AttackNot stated
Data exposedNamesSocial Security numbersPayment cardsFinancial
SectorRetail · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Cornerstone Building Brands
Official noticein.gov
Indiana Attorney General 2019 data breach report: Cornerstone Building Brands
Official noticemaine.gov
Maine Attorney General breach notice archive: Cornerstone Building Brands

Notices filed

Residents of CASep 11, 2019
California AGCount not stated
Residents of INSep 11, 2019
Indiana AG375 people
Residents of MESep 11, 2019
Maine AG3 people

Other breaches at Cornerstone Building Brands

Breach, details not statedBreach notice filed with the Indiana AG, details not stated.409 affectedRetailUSMay 21, 2021
History of this record
data_types2026-09-25
[] to ["names","ssn","payment-card","financial"]by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 11185by backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about Cornerstone Building Brands