Citi

Disclosed Jun 6, 20053,900,000 affectedUnverified

UPS loses CitiFinancial backup tapes with 3.9 million customers' data

Backup computer tapes holding personal and loan account information on about 3.9 million CitiFinancial customers were lost while being shipped by UPS to a credit bureau.

What is known

People affected	3,900,000 (as reported by the organization)
Disclosed	Jun 6, 2005
Attack	Lost or stolen device
Data exposed	NamesSocial Security numbersFinancial
Sector	Finance · US
Status	Unverified: not yet confirmed by an official notice, a filing or the organization

Sources

Newsweb.archive.org

Privacy Rights Clearinghouse: Chronology of Data Breaches

Notices filed

TotalJun 6, 2005

Research3,900,000 people

Other breaches at Citi

Breach, details not statedBreach notice filed with the California AG, details not stated.TechUSMar 28, 2013 Hackers view data on 360,083 Citi credit card accounts via website flawHacking exposed names, financial details and emails.Hacking360K affectedFinanceUSUnverifiedJun 3, 2011

History of this record

Added2026-09-25

First recordedby seedSource

First seen 2026-09-25 (Research). Record counts are as reported. Not legal advice.

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