Every public data breach

44 disclosed this week · 26,355 on record

Cornerstone Building Brands

Disclosed May 21, 2021409 affectedConfirmed

Official notice

What is known

People affected409 (as reported by the organization)
DisclosedMay 21, 2021
HappenedNov 30, 2020
AttackNot stated
Data exposedNot stated
SectorRetail · US
StatusConfirmed

Sources

Notices filed

Other breaches at Cornerstone Building Brands

History of this record
Added2026-09-25
First recordedby backfillSource

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

Everything about Cornerstone Building Brands