Understanding the business model is the best protection you have. Here is how it generally works in retail prop trading today. Every firm is structured differently, so read your firm’s terms for the specifics.
Simulated vs. real capital. In most retail prop firms, both the evaluation and the funded account are simulated. Your trades are executed on a demo-type environment with live prices, and the firm pays you a share of the simulated profit from its own revenue. Some firms copy or hedge the trades of consistent traders on real markets; how and whether they do is their business decision, not yours.
Where the revenue comes from. The main income of most firms is evaluation fees. Many traders buy an evaluation and do not pass it, often several times. Those fees fund the payouts to the traders who do pass and stay consistent. This is not a scandal; it is the model. But it means a firm does not need you to succeed in order to make money, so your success is your responsibility.
Why the rules exist. The daily loss limit and maximum drawdown cap how much any single trader can cost the firm. Consistency rules filter out traders who pass with one lucky, oversized day. News and weekend rules limit exposure to gaps and slippage. From the firm’s side, the rules are risk management. From your side, they are the same rules a professional should follow anyway.
What this means for you. Choose firms with a long, verifiable payout history, clear rules and transparent terms. Treat every evaluation fee as a business expense with a plan behind it, not a lottery ticket.