Whenever big money is involved, you can bet that someone out there will try to beat the system. My advice is to better protect our tournament chips...I see too many rooms that leave chips sitting on carts that are not secured. Protect tournament chips by keeping them under lock and key.
Severe punishment for any offenders would be another deterrent.
I'm sure there are ways to mark a chip or install a transponder type device that can be monitored, like a GPS, but I'm sure that might not be cost effective.