Arbitrary Account Closures/Disabling without Valid Reasons:
Some brokers have been known to appropriate client’s funds without valid reasons.
If there are persistent complaints about a broker not honoring payments of trading profits to traders, then such a broker is a scam broker.
Freezing Trading Platforms:
Some brokers have also been known to alter trading conditions by “freezing” their trading platforms, thus preventing traders from either participating in profitable trading opportunities, or from closing out profitable trades.