When I read about the details behind the Target hack, it really got me thinking about the Rakuten breach again. The Target hack is basically the idea that all encoded stuff gets decoded when inside the computer's memory. All a person needed to do is get that Russian-made little windows utility onto the right computers inside the corporate computers that handle customer credit cards. I'd put money on it that that little utility found its way onto those Rakuten windows PCs in order processing.
And the guy that developed that little utility , your name, was only 17. They don't teach this shit in good ol'usa schools .