You buy a hot/stolen car or product it can be taken from you at any time its discovered.
To be legally "taken back" requires legal action including law enforcement and probably court action.
Not knowing might save you from prosecution buy not from loosing it. You have not right to use stole property and a illegal clone is stolen property.
Not knowing it is a clone would probably cast you as a victim in court, possible able to have charges lodge against whomever sold you the cable.
I hope more vendors do it.
I know you do. Maybe you are the one that should reap what you sow.