Northern Trust

Disclosed Jul 29, 201412 years ago480,000 affectedConfirmed

Official notice

What is known

People affected	480,000 (as reported by the organization)
Disclosed	Jul 29, 2014
Happened	May 17, 2014
Attack	Not stated
Data exposed	Names, Social Security numbers, Addresses
Sector	Finance · US
Status	Confirmed

Sources

Source	Kind
California Attorney General breach notice: Northern Trustoag.ca.gov · Official notice	Official notice
Indiana Attorney General 2014 data breach report: Northern Trustin.gov · Official notice	Official notice
Maine Attorney General breach notice archive: Northern Trustmaine.gov · Official notice	Official notice

Notices filed

Where	Filed	People
California AGresidents of CA	Jul 29, 2014
Indiana AGresidents of IN	Jul 29, 2014	30,470
Maine AGresidents of ME	Jul 29, 2014	1,014

Other breaches at Northern Trust

Breach	Disclosed	Attack	Sector	Status	Affected
Disclosed May 5, 2016May 5, 201610 years ago	May 5, 201610 years ago	Not stated	Finance	Confirmed	141

History of this record

2026-09-25 · data_types: [] to ["names","ssn","addresses"] · backfill source
2026-09-25 · records_basis: empty to organization · backfill source
2026-09-25 · records: empty to 480000 · backfill source
2026-09-25 · added · backfill source

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

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