Yes he was I think. I think he downloaded some software that had a keylogger in it and them his credentials were simply stolen and they took the ethereum out of his wallet. I think that people who do this are very pathetic.
Tip:Don't hold coins in a an exchange.
Yes Windoze. I don't play with big amounts of anything, so yes, whip me for Bill's abortion.
No to keylogger. Still working timelines out but everything having to do with ethereum was downloaded and then deleted from my hd. Including entire ethereum chain and json wallet file. I was not quick enough to shut down (I saw this happening) to say the least. I could have run undelete and recovered and probably beat them to it if I had reacted a bit faster. It took them 90 mins to move the coin. Coins went to Poloniex according to chain. That was when I tried my Poloniex account and it was not accessible. No I am not really mad at Poloniex. I kinda thought they would be more interested in a breach but maybe they just happen too much. I have written it off.
FWIW some cheap malware protection:
1) There are options in Windows that force the user to ok the downloading of any files or the execution of any external exe stuff. Your browser can also force the permissions on any Java stuff.
2) Malwarebytes is the poor mans anti virus software.
3) Always check task manager at least once a day and become familiar with every allowed process
4) Run MS's free malware scan tool.
5) Always turn off your computer when not in use or at least pull the cat cable.
6) When you see something fishy going on that you don't like, disconnecting the cat cable is the first and fastest thing you could do.
Could you share what version of the Mist wallet you are using?