BREACHCONFIRMED
Contra Costa Health Plan Data Breach
Health Insurer • healthcare
Unknown
Records Affected
Dec 1, 2014
Disclosed
insider
Attack Vector
Data Exposed
NamesAddressesPhone NumbersDates of BirthSocial Security Numbersmedical
Timeline
OccurredInvalid Date
DiscoveredMay 22, 2018
DisclosedDecember 1, 2014
Last updated: February 5, 2026