BREACHCONFIRMED
Health Plan of San Mateo Data Breach
Health Insurer • healthcare
Unknown
Records Affected
Jan 17, 2023
Disclosed
phishing
Attack Vector
Data Exposed
NamesDates of Birthmedical
Timeline
OccurredJanuary 17, 2023
DiscoveredJanuary 17, 2023
DisclosedJanuary 17, 2023
Last updated: February 4, 2026