Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

McKesson

Disclosed Aug 9, 2013Confirmed

Official notice

What is known

People affectedNot stated in the sources we have
DisclosedAug 9, 2013
HappenedApr 29, 2013
AttackNot stated
Data exposedNamesSocial Security numbersNames
SectorTech · US
StatusConfirmed

Sources

Official noticemaine.gov
Maine Attorney General breach notice archive: McKesson

Notices filed

Residents of MEAug 9, 2013
Maine AG52 people

Other breaches at McKesson

McKesson discloses breach as ShinyHunters claims millions of patient recordsPhishing exposed dates of birth, emails, employment records, names, health records, phone numbers, addresses and Social Security numbers.Phishing6.4M accountsHealthcareUSAug 28
History of this record
Added2026-09-25
First recordedby backfillSource

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

Everything about McKesson