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47 disclosed this week · 26,367 on record

Gold Coast Health Plan

Disclosed Oct 5, 201837,005 affectedConfirmed

Official notice

On October 5, 2018, the covered entity (CE), Gold Coast Health Plan, reported that phishing attacks compromised its workforce members’ emails, affecting 37,005 individuals. The types of protected health information (PHI) involved in the breach included names, dates of birth, Medi-Cal numbers, health plan names, claims information, diagnoses/conditions, and other treatment information. The CE provided breach notification to HHS, affected individuals, and the media. In response to the breach, the CE implemented new technical safeguards, trained its workforce members on phishing attacks, and implemented risk analysis and risk management plans as recommended by its security company. The CE also provided OCR with additional documentation including its revised policies and procedures and its new employee orientation packet relevant to this breach investigation. OCR obtained assurances that the CE implemented the corrective actions listed above. .

What is known

People affected37,005 (as reported to HHS)
DisclosedOct 5, 2018
HappenedJun 18, 2018
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Gold Coast Health Plan

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
empty to hhsby backfillSource
records2026-09-25
empty to 37005by backfillSource
summary2026-09-25
empty to On October 5, 2018, the covered entity (CE), Gold Coast Health Plan, reported that phishing attacks compromised its workforce members’ emails, affecting 37,005 individuals. The types of protected health information (PHI) involved in the breby 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.

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