My Steam account got accessed from Japan once, but my email was accessed from Salt Lake City, UT at the same time (I was an idiot and had both passwords the same. I suspect someone took my credentials from a university computer). That person was most likely using a VPN to make it appear as though they are from Japan, which was the case with my would-be hacker man. Luckily, I'm an internet genius and the thief didn't have time to remove my access to the account.