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Capital One

Disclosed Feb 6, 20179 years agoConfirmed

Official notice

What is known

People affectedNot stated in the sources we have
DisclosedFeb 6, 2017
HappenedJan 27, 2017
AttackNot stated
Data exposedNot stated
SectorTech · US
StatusConfirmed

Sources

Source
California Attorney General breach notice: Capital Oneoag.ca.gov · Official notice

Notices filed

WhereFiledPeople
California AGresidents of CAFeb 6, 2017
California AGresidents of CAAug 9, 2018

Other breaches at Capital One

BreachAffected
Disclosed Jan 12, 2026Jan 128 months ago12
Disclosed Apr 4, 2025Apr 4, 20251 year ago1
Disclosed Mar 20, 2023Mar 20, 20233 years agoRansomware17K
Disclosed Feb 6, 2020Feb 6, 20206 years ago3,740
Cloud intrusion exposes data of 100 million US and 6 million Canadian applicantsFeb 1, 20197 years agoExposed data106M
History of this record
  • 2026-09-25 · disclosed: 2018-08-09 to 2017-02-06 · 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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