The rules they do not put on the pricing page
48 terms across 15 firms that can cost you an account or a payout after you have paid — 28 of them close the account outright. Every one is quoted from the firm’s own pages, with a link to where we read it.
Exposure
Position size, hedging and how much may be open at once.
Opposite positions across accounts count as manipulation
Acting alone or with others, including across multiple accounts or identities, to place trades aimed at manipulating trading circumstances — their example is simultaneously entering opposite positions — is a breach. This catches the common tactic of hedging one account against another to guarantee that one of them passes.
On Zero, holding over the weekend breaches the account
The Zero model forbids holding trades over the weekend, and their objectives page states plainly that the account will be breached. Every other Funding Pips model allows overnight and weekend holding, so this is a property of the product you bought rather than a house rule.
This list is only as complete as our reading. 15 of the firms we track have been through a rulebook pass; the rest are still to do, and a firm missing from here has not been cleared — it has not been checked. See every firm we track.