Mass General Brigham

Disclosed Dec 18, 20205 years ago32,123 affectedConfirmed

What is known

People affected	32,123 (as reported by the organization)
Disclosed	Dec 18, 2020
Happened	Nov 23, 2020
Attack	Not stated
Data exposed	Not stated
Sector	Other · US
Status	Confirmed

Source	Kind
Indiana Attorney General 2021 data breach report: Mass General Brighamin.gov · Official notice	Official notice

Where	Filed	People
Indiana AGresidents of IN	Dec 18, 2020	26

Breach	Disclosed	Attack	Sector	Status	Affected
Disclosed Jun 28, 2024Jun 28, 20242 years agoInsider	Jun 28, 20242 years ago	Insider	Healthcare	Confirmed	655

History of this record

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