Every public data breach

47 disclosed this week · 26,367 on record

Torrance Memorial Medical Center

Disclosed Jun 19, 201746,632 affectedConfirmed

Official notice

The covered entity (CE) reported that two workforce members responded to a phishing email which resulted in a breach of protected health information (PHI). The breach affected 44,960 individuals and included names, addresses, dates of birth, health care claims information, diagnoses, medications, other treatment information, and 3,304 social security numbers. The CE provided breach notification to HHS, affected individuals and the media. Following the breach, the CE took a number of steps to strengthen its administrative and technical safeguards. It increased its security training and enhanced authentication procedures and technical measures to identify and remove malicious emails. OCR’s investigation resulted in the CE improving its practices in safeguarding PHI.

What is known

People affected46,632 (as reported to HHS)
DisclosedJun 19, 2017
HappenedApr 18, 2017
AttackHacking
Data exposedNamesSocial Security numbersHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Torrance Memorial Medical Center

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
["names","ssn"] to ["names","ssn","health"]by backfillSource
records_basis2026-09-25
organization to hhsby backfillSource
records2026-09-25
32499 to 46632by backfillSource
summary2026-09-25
empty to The covered entity (CE) reported that two workforce members responded to a phishing email which resulted in a breach of protected health information (PHI). The breach affected 44,960 individuals and included names, addresses, dates of birthby backfillSource
data_types2026-09-25
[] to ["names","ssn"]by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 32499by backfillSource
Added2026-09-25
First recordedby backfillSource

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

Everything about Torrance Memorial Medical Center