It is unfortunate to read about this case and I am sorry for the loss of your assets. It is also good that you have shared it although you leave us with many doubts as to how it could have happened and thus have references as to how we could better protect ourselves. From what you share, I get the idea that someone close to you is involved in your loss, you should be aware of that as well. On that note, I am very jealous of my PC and I don't allow anyone strange to use it, only my immediate family and even then, I also have my security protocols. All the best my friend.