thyssenkrupp Materials

Disclosed Jan 19, 202110,462 affectedConfirmed

What is known

People affected	10,462 (as reported by the organization)
Disclosed	Jan 19, 2021
Discovered	Dec 28, 2020
Happened	Dec 28, 2020
Attack	Ransomware
Data exposed	Not stated
Sector	Other · US
Status	Confirmed

History of this record

records_basis2026-09-25

empty to organizationby backfillSource

records2026-09-25

empty to 10462by backfillSource

disclosed2026-09-25

2021-01-26 to 2021-01-19by backfillSource

attack2026-09-25

unknown to ransomwareby backfillSource

discovered2026-09-25

empty to 2020-12-28by 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.