Every public data breach

Disclosed this week53On record26,385

53 disclosed this week · 26,385 on record

Contra Costa Health Services

1 breach4,700 affected in allHealthcare

Insider breachInsider exposed names and health records. Reported to the HHS archive.4,700 affectedHealthcareUSDec 7, 2011
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Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

Added2026-09-25
Contra Costa Health Services, 2011-12-07
Added2026-09-25
Contra Costa Health Services