Hello,
Yesterday i lost 7 BTC when i wanted to transfert my BTC cash to poloniex.
I think problem come to me but i don't understand where is my fault.

What i did :

I download first bitcoin ABC here https://download.bitcoinabc.org/0.15.0/win/bitcoin-abc-0.15.0-win64.zip  but it was too long to synchronyse so after I donwloaded electron cash from here https[Suspicious link removed]

I have installed everything but after when i launched my electrum wallet i see 4 transaction and my 7 btc are left to anothers address.

Is it website which are not secure or i did another bad manipulation .

For info one transaction is here : https://blockchain.info/tx/aa97bdb9e50d83cfeb8e3c64e2d50b4c5b5a99b4a6465218821eb5bc369368d8 and from 24 hours BTC are always here

thanks