What..? Basically, all you need to know is it is not hacked, and somewhere along the lines you have a chest selling chests.
No one logged into your account during this period. Nor has there been any deviation in IP addresses either. You have to have a chest somewhere.
I believe that there was a period of time someone could create a shop for you by just writing your name on the first line. You may still be able to do this.
Actually if the person has container perms on the with the sign this can be abused. Hopefully it is a simple Buy chest and now a Buy/Sell chest, as in this case the player could see stock, open chest, remove items and resell stock, thus depleting you of your rupees. It is one of the big reason's I've always said not to trust other players with your shops, let alone your residences.
