The fact that they are missing fiat (JPY) from a bank account(s) seems to scream that this was, at least partially, an inside job. That could also explain why

The fact that they are missing fiat (JPY) from a bank account(s) seems to scream that this was, at least partially, an inside job. That could also explain why they are so eerily silent and not forthcoming. That is, either they are hiding something or earnestly investigating and don't want to tip off the insider(s) in question.