THREAT OPS › Threat News › [Breach] McKesson — 6,404,340 accounts exposed
[Breach] McKesson — 6,404,340 accounts exposed
Breached service: McKesson Domain: mckesson.com Accounts exposed: 6,404,340 Breach date: 2026-08-21 Added to HIBP: 2026-09-10T05:45:39Z Data classes leaked: Dates of birth, Email addresses, Employers, Genders, Names, Personal health data, Phone numbers, Physical addresses Description: In August 2026, healthcare and pharmaceutical company McKesson was targeted in a ShinyHunters "pay or leak" extort
MITRE ATT&CK techniques
- Email AddressesT1589.002
Indicators of compromise
- mckesson.comdomain
Original source: https://haveibeenpwned.com/PwnedWebsites#McKesson