Guys I know this is off topic but is there a way to stop a unconfirmed transaction. Someone just stole the coins from my wallet.
try to double spend your coins to a new address where you own the private key.
put a very high fee in this tx and hopefully your tx will be confirmed before the tx of the theft.
This is to certify that small blocks have in fact one additional advantage. They allow people to fix errors before they become permanent.