Hi all,
I was expecting a transfer of $1000 in btc.. I saw incoming of $1000 in my wallet, then i also saw $100 incoming from the same sender.
You didn't ask yourself why he is sending an extra $100?
I thought once a transfer is sent and you see it on incoming it cant be changed or modified?
An unconfirmed transfer can be changed or modified or not even confirmed at all.
That's why you should wait for 6 block confirmation before taking that money for granted.
What happened is that most likely you got scammed, they sent you $1000 worth of BTC with low fees you released an escrow or paid something or sent your coins and then they simply replaced the unconfirmed transaction and they sent you $100 probably as cover up to claim in a dispute that's the amount you agreed on!
Whether or not the OP's information may be true, I am intrigued that this could happen, wallets are supposed to have security encryption to such a degree that they do not allow this type of case... And they can tell me that type of option exists due to the possibility of making a mistake when making a transaction, but by God, we are talking about bitcoin, not any other current currency, for obvious reasons, before making a deposit to another person, you must make a last revision of the amount that is being made, so I don't see any sense in him that he was wrong and therefore redirected said transaction, so it makes me think that you are right, it is very likely that the OP has fallen for a scam. It is incredible how this type of incident has increased, I suppose that it is because of the popularity of bitcoin that thefts have increased considerably, which is why you have to take the necessary precautions, if before you were susceptible to transfers and exchanges, now there are to double this distrust... because apparently not even wallets are so safe now.