Quarantine
Noun · Security & Infosec
Definitions
A containment action that isolates suspicious files, messages, devices, or systems so they cannot continue to spread harm or interact normally until reviewed. Quarantine is common in endpoint protection, email security, and incident response workflows.
In plain English: Isolating something suspicious so it cannot keep causing harm.
Example: "The gateway moved the attachment to quarantine while analysts confirmed whether it was a real malware sample or a false positive."