I occasionally see news stories of a robbery or burglary where the perpetrator cops some scratch tickets along with the other stuff.
with the lottery folks simply be able to void that batch of tickets? or, even more, use those tickets to catch him if he tries to cash in?
I guess you could have every store selling them be required to register the sale mapped to the serial number, and disqualify any unregistered ticket. It’d be a bit of a hassle, but certainly doable.