Every public data breach

47 disclosed this week · 26,367 on record

Mevion Medical Systems

Disclosed Jun 17, 2021730 affectedConfirmed

Official notice

What is known

People affected730 (as reported by the organization)
DisclosedJun 17, 2021
HappenedMar 28, 2021
AttackNot stated
Data exposedNot stated
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby backfillSource

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

Everything about Mevion Medical Systems