Time for a treat. This is ancient, but still unknown... until now. Prepare to see why I was hired, and the best sidequest in Acanthite.
This can be done after getting access to the Cyber World.
Randomly, you'll get a phone call from "X", which will use the following message:
X:
Ugh... Am I out? There is a presence here... No... It's a phone. Who's there? Kamon? Are you a trainer? Yes? I'm... I'm losing connection... The man in the Pokemon Center of Elderwood... The password... is... Longhand... He- *disconnects*
After you get the call, you won't get it again. Go to the scientist in the Elderwood Pokemon Center, and talk to him. He gives you a Strange Key, which opens a a door in a house on Mt. Miasma. In that room, you'll see a white pod, an antique computer, and a prototype entry to the Cyber World. The entry takes you to a room behind a Cyber Latch in the normal Cyber World. From this side you can open it, so do that. Then, go into the hole in the data you find in this room. It'll take you to a weird area with numerous glitches, lots of Virus-types, and walls of green data flooring. Decend deep into the bowels of the dungeon, and eventually you'll reach a Cyber Latch. Open it, and you'll enter a round, orange inclosure of data with a blue human-shape figure made of data in the center. An exclamation point will apear over its head, then it will enter your Pokegear. You'll get a message onscreen, as if it had talked to you.
X:
I mean no harm. I must explain myself... 30 years ago, I was a trainer, the same age as you. I went into the Cyber World... keep in mind that it was a prototype. I was exploring when the system crashed, and my mind was severed from my body. Having nothing to form around, when the system was repaired I found myself like this. The cleanup programs... they dropped me in this area, for fragmented data. I tried to escape, and I did... They found me again, and deposited me in this vault, where I couldn't leave. Please, take me out of here.
Leave the vault, and the door will close, then be deleted. Leave the area (named Cyber Wastes), and reenter the house through the teleporter. X will leave your Pokegear, and enter the pod. Then, he'll come out of it, in his body...
X (in body): They froze my body... Ah! Hello. I'm Daniel... thanks. Have this.
Daniel will then give you an Eerie Patch.