LOOK OUT PEOPLE - I HAD ALL OF MY COINS STOLEN TODAY.  THEY GOT 13400 OF MY DIAMONDCOINS - I AM SURE THEY WILL BE DUMPED AS THEY JUST DID WITH MY AMBERCOINS
How did they steal your coins? Who were they? Give us specifics. We'd like to learn from you.
Wallet.dat copied over teamviewer. The privatekeytracker over an infected ccminer-file, called tpruvot 1.7.1.
My advice since the fuelcoin-dump:
Never use teamviewer more with ur walletpc!
Greetz
Steve
Yes, he seems to have installed yesterday a version of ccminer, downloaded from cryptominingblog, which contained some form of malicious software. I suggest to use ORIGINAL and up to date version of antivirus, firewall, possibility even VPN and as pointed out by Steve, some form of antikeylogger software. Also, teamviewer should not be used. 
Finally, be very selective what you install and do regular system scans. 
Terrible loss for the community, I still hope pokey will come back after some time so we can try to organize some form of mutual assistance action to help him out a bit.