That could be the potential entry point for the breach. Most likely, the hacker didn't leave anything behind. That is a learning experience, but if that happened to me with such a large amount, I might have a mental breakdown, especially if that's the only remaining asset I have, and it disappears in an instant. You need to improve your cybersecurity practices, and your family or colleagues should also have knowledge about it. I consider my PC/laptop as personal belongings, so I hope there's no interference, even if we're married. By the way, do you know if your wife used your PC and informed you about what she was going to do before the incident happened?