Every public data breach

53 disclosed this week · 26,385 on record

Massachusetts General Hospital

5 breaches15K affected in allHealthcare

About

Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

attack2026-09-25
Massachusetts General Hospital, 2014-08-05insider
records_basis2026-09-25
Massachusetts General Hospital, 2014-08-05hhs
records2026-09-25
Massachusetts General Hospital, 2014-08-05648
summary2026-09-25
Massachusetts General Hospital, 2014-08-05An employee of the covered entity (CE), Massachusetts General Hospital, sent an unencrypted e-mail to the incorrect e-mail address. The e-mail contained the protected health information (PHI of 648 individuals. The types of PHI involved in
attack2026-09-25
Massachusetts General Hospital, 2016-06-29hacking
data_types2026-09-25
Massachusetts General Hospital, 2016-06-29["names","health"]
summary2026-09-25
Massachusetts General Hospital, 2016-06-29Hackers caused a breach of protected health information (PHI) at Patterson Dental Supply, Inc., a business associate (BA) of the covered entity (CE), Massachusetts General Hospital. The breach affected the PHI of approximately 4,293 individ
disclosed2026-09-25
Massachusetts General Hospital, 2018-12-142018-12-14
Added2026-09-25
Massachusetts General Hospital, 2018-12-14
Added2026-09-25
Massachusetts General Hospital, 2014-08-05
Added2026-09-25
Massachusetts General Hospital, 2017-03-21
Added2026-09-25
Massachusetts General Hospital, 2016-06-29
Added2026-09-25
Massachusetts General Hospital, 2024-02-21
Added2026-09-25
Massachusetts General Hospital