If you're looking for a specific IDA Pro key, here are some suggestions:
For high-risk environments (government, military, big tech), Hex-Rays historically offered hardware dongles (USB keys). While phased out in favor of cloud-based licensing for newer versions, you will still encounter legacy systems requiring these physical IDA Pro keys. ida pro keys
This is not possible without purchasing an upgrade. Named user keys are one-third the price of floating keys. Do not attempt to "share" a named key via network drives—Hex-Rays uses heartbeats and checks for concurrent execution. If you're looking for a specific IDA Pro