So is it enough if we send 1 eToken to somewhere, because how the system works is that it sends all coins from the wallet, and sends the 1 coin to the destination, and the rest of the coins to the same wallet but different address?
Generate a new address in your wallet and send all of your coins to that address
Yeah, if you're paranoid like me:
- close the wallet
- rename your wallet.dat file in old.dat
- open your wallet, so your client will generate a new wallet.dat file
- generate a new address from this new wallet
- close the client
- rename your new fresh wallet into new.dat
- rename the old.dat for wallet.dat
- open the client
- send all your fund to your new address
- close the client
- remove wallet.dat
- rename new.dat as wallet.dat
Old privates keys definitively gone from your wallet if you swap.