Scammers copy your strategies

I found a big hole in copying strategies for scammers. They copy your strategy to a demo account and then duplicate the orders to a real account, and it turns out that they copy the strategy absolutely free of charge. And then they can pass it off as their strategy. Propose a urgently solve this problem. Prohibit copying real strategies from demo accounts. I think that I will be supported by all honest suppliers of strategies.  Maybe I'm wrong and it can't be done