Can someone explain to me how this is possible?
I received an anonymous payament on my blockchain wallet equal to the amount of 0.1 BTC.
The transaction has 3 confirmations, then after 40 minutes i reopened my blockchain wallet, and the same transaction was resent to another wallet,
and i didn't send anything to anyone.
The sent trasaction has yet 0 confirmations, what is happening help me please.
I can be sure that noone hacked my wallet, i just received a confirmed bitcoin transaction and then this man reversed it, but i tought that this was not possible if the transaction is confirmed..
What happened and what can i do?
What happened to your wallet is not really a problem since the first transaction of sending bitcoin to you was at fault or done by error of the sender. So if you do not receive bitcoin then there was no problem since it is not for you. The second thing is that though bitcoin transaction is irreversible the sender can cancel the transaction as long as it is not confirmed by using a Replace by Fee (RBF) protocol to replace the original transaction with a new one using a higher transaction fee.
Also you dont need to do something since it was not your bitcoin in the first place.