Synology actively maintains a database of legitimate keys. If a generic key is shared widely on the internet (often used by unauthorized sellers), Synology can blacklist that key during a firmware update. When this happens, your cameras will stop recording, and you will be locked out of the system until you purchase legitimate licenses.
Out of the box, almost every Synology NAS (DiskStation and RackStation) includes . synology surveillance station license free free
: Default free licenses are tied to the specific hardware they came with and cannot be transferred to a different Synology NAS. Virtual DSM Exception : If you run Surveillance Station on a Virtual DSM (vDSM) Docker DSM 0 free licenses by default. Permanent Access Synology actively maintains a database of legitimate keys