Every public data breach

47 disclosed this week · 26,367 on record

Health Plan of San Mateo

2 breaches13K affected in allHealthcare

About

Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

Added2026-09-25
Health Plan of San Mateo, 2011-06-29
disclosed2026-09-25
Health Plan of San Mateo, 2023-01-182023-01-18
attack2026-09-25
Health Plan of San Mateo, 2023-01-18hacking
data_types2026-09-25
Health Plan of San Mateo, 2023-01-18["names","health"]
records_basis2026-09-25
Health Plan of San Mateo, 2023-01-18hhs
records2026-09-25
Health Plan of San Mateo, 2023-01-1811894
summary2026-09-25
Health Plan of San Mateo, 2023-01-18The covered entity (CE), Health Plan of San Mateo, reported that an employee was the subject of an email phishing scheme that affected the protected health information (PHI) of 11,894 individuals. The PHI involved included names, dates of b
Added2026-09-25
Health Plan of San Mateo, 2023-01-18
Added2026-09-25
Health Plan of San Mateo