Discover Financial Services

Disclosed Jul 28, 20206 years ago1,862 affectedConfirmed

Official notice

What is known

People affected	1,862 (as reported by the organization)
Disclosed	Jul 28, 2020
Discovered	Jun 30, 2020
Happened	Sep 29, 2020
Attack	Not stated
Data exposed	Names, Social Security numbers
Sector	Finance · US
Status	Confirmed

Sources

Source	Kind
Indiana Attorney General 2021 data breach report: Discover Financial Servicesin.gov · Official notice	Official notice
Indiana Attorney General 2020 data breach report: Discover Financial Servicesin.gov · Official notice	Official notice
Maine Attorney General breach notice archive: Discover Financial Servicesmaine.gov · Official notice	Official notice

Notices filed

Where	Filed	People
Indiana AGresidents of IN	Jul 28, 2020	45
Maine AGresidents of ME	Jul 28, 2020	7
Indiana AGresidents of IN	Dec 17, 2020	16

Other breaches at Discover Financial Services

Breach	Disclosed	Attack	Sector	Status	Affected
Disclosed Jan 13, 2020Jan 13, 20206 years ago	Jan 13, 20206 years ago	Not stated	Finance	Confirmed	565
Disclosed Mar 21, 2016Mar 21, 201610 years ago	Mar 21, 201610 years ago	Not stated	Finance	Confirmed	Unknown
Disclosed May 25, 2012May 25, 201214 years ago	May 25, 201214 years ago	Not stated	Finance	Confirmed	Unknown

History of this record

2026-09-25 · data_types: [] to ["names","ssn"] · backfill source
2026-09-25 · discovered: empty to 2020-06-30 · backfill source
2026-09-25 · records: 690 to 1862 · backfill source
2026-09-25 · disclosed: 2020-12-17 to 2020-07-28 · backfill source
2026-09-25 · added · backfill source

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

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