What prevents Wevest from being used by trade experts as a way to scam people? It would be like giving these pump and dump people access to your Ameritrade acco

What prevents Wevest from being used by trade experts as a way to scam people? It would be like giving these pump and dump people access to your Ameritrade account. They will have 2 accounts. Their real account and their Wevest account. Buy a stock for $1 with real account then use their we vest account to but the same stock. The price will go up. Then sell the stock in the real account.