License Key
Noun · Security & Infosec
Definitions
A code or cryptographic token used to activate, authorize, or restrict software according to licensing terms. In security contexts, license keys matter because they can be stolen, forged, resold, or embedded in applications and scripts improperly.
In plain English: A code used to activate or authorize licensed software.
Example: "The vendor traced the abuse to a leaked license key that had been copied into a public deployment script."