Why deposits disappear
Most losses are not hacks. They are missing limits.
This risk lens follows the failure modes users actually meet on exchanges: copied traders changing risk, bots averaging into liquidation, API keys with too much power, and leverage bands where a tiny move can erase margin.
Bybit
Copytrading drift
Follower entry price, margin mode, and master-trader hedge can diverge.
OKX
Bot guardrails
Grid/DCA bots need hard daily loss caps, position caps, and kill switches.
Gate.io
Listing and liquidity risk
Thin books, delistings, and transfer network mistakes can trap capital.
MEXC
Extreme leverage
Very high leverage turns normal volatility, fees, and slippage into liquidation.