McKesson

Disclosed Aug 9, 201313 years agoConfirmed

Official notice

What is known

People affected	Not stated in the sources we have
Disclosed	Aug 9, 2013
Happened	Apr 29, 2013
Attack	Not stated
Data exposed	Names, Social Security numbers, Names
Sector	Tech · US
Status	Confirmed

Sources

Source	Kind
Maine Attorney General breach notice archive: McKessonmaine.gov · Official notice	Official notice

Notices filed

Where	Filed	People
Maine AGresidents of ME	Aug 9, 2013	52

Other breaches at McKesson

Breach	Disclosed	Attack	Sector	Status	Affected
McKesson discloses breach as ShinyHunters claims millions of patient recordsAug 284 weeks agoPhishing	Aug 284 weeks ago	Phishing	Healthcare	Confirmed	6.4Macct

History of this record

2026-09-25 · added · backfill source

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

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