BREACHCONFIRMED
Quest Diagnostics Data Breach
Lab/Diagnostics • healthcare
Unknown
Records Affected
Oct 29, 2021
Disclosed
insider
Attack Vector
Data Exposed
Social Security NumbersNamesEmail Addresses
Timeline
OccurredOctober 29, 2021
DiscoveredOctober 29, 2021
DisclosedOctober 29, 2021
Last updated: February 4, 2026