I nod my head again. I feel relieved that Mr. Matsuyama seems to know what I want to ask him. “Ms. Chiyo said that Ministry of Health, Labor, and Welfare already deleted her old profile. So, how did you find out about her? I don’t think it’s easy for you to get a hold of her current profile when the ministry has so many profiles in their database. And it’s expanding too,” I ask Mr. Matsuyama. Mr. Matsuyama sighs when he hears my question. “Well, I have to admit that I will never be able to find her current profile using the conventional way. So, I have to depend on another method to get a hold of her current profile. Keep in mind that I didn’t have to hack the blockchain to do that. I only need to hack the username, and the password used to access the blockchain. It’s not that hard to do.

