Funded trader programs as a business model are not a scam and it is possible for traders to get funded with large amounts of money.
However, there is an abundance of companies offering forex funded accounts and not all of them are safe (they benefit more from fees from customers who can never pass their tests than from funded traders), thus prospective traders need to perform due diligence and adequate research before applying for a funded trading account. Investors should prefer Prop Trading Firms which enjoy a good reputation.