Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Nucor

Disclosed Jun 30, 20238,824 affectedConfirmed

Official notice

What is known

People affected8,824 (as reported by the organization)
DisclosedJun 30, 2023
HappenedMay 26, 2023
AttackNot stated
Data exposedNot stated
SectorManufacturing · US
StatusConfirmed

Sources

Official noticeago.vermont.gov
Vermont Attorney General: 2023-06-30 Nucor Corporation Data Breach Notice to Consumers
Official noticein.gov
Indiana Attorney General 2023 data breach report: Nucor

Notices filed

Residents of VTJun 30, 2023
Vermont AGCount not stated
Residents of INJun 30, 2023
Indiana AG710 people

Other breaches at Nucor

Cyberattack forces steelmaker Nucor to halt some productionCyberattack forces steelmaker Nucor to halt some productionHacking2,461 affectedManufacturingUSMay 14, 2025
History of this record
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 8824by backfillSource
occurred2026-09-25
empty to 2023-05-26by backfillSource
Added2026-09-25
First recordedby backfillSource

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

Everything about Nucor