Ah K nodded, "I see."
He carefully studied the USB drive again.
"I remember now. This is indeed the first that was released 20 years ago. There was a version with a hiding function back then, and it was very difficult to get. I think this one of yours seems to be that version."
"Hiding function version? What does that mean?"
"As the name suggests, there are some confidential documents that can be hidden in this USB drive."
"You mean, there might be some hidden files in this USB drive that I haven't discovered?"
Ah K nodded.
"That's right. But this USB drive is from a long time ago. I need some time to crack it. Things like this are harder to crack when they are older. Just like a door lock, the older the door lock, the harder it is to crack."
"Then contact me when you're done."
Ah K nodded. The light from the computer screen was projected on his face and reflected in his pupils.
