I've just seen 0.25 Bitcoin disappear from my wallet this afternoon! I didn't send it so I guess I've been scammed? I don't imagine I'll get it back but maybe someone can help me understand where it went.
For two months I've been trying to withdraw BTC from Poloniex but never received their withdrawal confirmation emails. I've been pestering both their support and my email ISP support without luck. Then suddenly this morning I started getting their emails again, so maybe one of them finally fixed the issue.
I clicked on the withdrawal confirmation email that came through - and that was probably the big mistake. In the two months since I originally made the request I have changed things around and the withdrawal address is in an Electrum Wallet that is no longer in my primary wallet. Specifically, the withdrawal is from before the Bitcoin Gold fork. To claim BTG I swept the private key from that Electrum Wallet into Coinomi so I could access the equivalent BTG -
I sent it to the HitBTC exchange and sold it.
I still have access to the Electrum Wallet so I opened it up and this is what I see - the incoming receipt from Poloniex has an exact matching outgoing transaction for today at the exact same time - as the money was coming in it was already being sent back out somewhere:
I am at a loss to understand what has happened.
1) Is it related to the fork? If I spent the BTG from that address, will any BTC sent to the same address now get sent automatically to wherever I sent BTG? If so that sounds highly dangerous, and therefore unlikely.
2) Have I been scammed? I exposed the private keys to Coinomi but that's a pretty respectable wallet provider so how would someone get hold of the private keys? Even if they did, are they able to send money out from my wallet even at the instant that it's being put in?
I'm very confused, and worried about my money - please help!