Every public data breach

47 disclosed this week · 26,367 on record

Flagstar Bank, FSB

Disclosed Mar 15, 20211,465,002 affectedConfirmed

Official notice

What is known

People affected1,465,002 (as reported by the organization)
DisclosedMar 15, 2021
DiscoveredJan 24, 2021
HappenedJan 20, 2021
AttackHacking
Data exposedNot stated
SectorFinance · US
StatusConfirmed

Sources

Notices filed

Other breaches at Flagstar Bank, FSB

History of this record
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 1465002by backfillSource
attack2026-09-25
unknown to hackingby backfillSource
discovered2026-09-25
empty to 2021-01-24by 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 Flagstar Bank, FSB