I am confused. Bitcoins can be mined with GPU (for fast), or ASICs, and FPGAs or CPU for slower. Is MELY's pool different? LTC (Lite coin I assume) I know little about. Is that CPU mining only? CPU mining can be hacked I have seen it happen with things such as HVC (Heavy Coin) where it was CPU, but someone modified cgminer to use with nvidia and radaeon to increased the hashrate then the price went down.