About a week ago my deposit was stolen from my address within minutes of confirmation. I contacted support and also left a message here but I have not had any reply. It is possible that it was my side that was compromised I suppose, but I don't think it was. In any case it would be nice to get some kind of response, I guess that is looking increasingly unlikely.
I would strongly advise against depositing if anybody is reading this, at least for now.
I think your pc is compromised, you should scan your pc or wipe it clean and install your preferred os. sd wouldn't steal their customer's money. can you share the address to which your balance was withdrawn to?