<spoiler=OOC> I checked this out with Dethklok before hand, but some stuff's thrown in. This post may be prone to edit.
Marko was a little nervous being in an elevator with Damien, but he answered the question. "With this," He held up a faintly trembling hand, displaying the plug in the center of his palm. "Basically, we plug it into the holodeck and it puts us into a virtual reality representation of cyberspace. It's like a massive wireframe loop of tube with one way in and out, and glowing cubes that represent messages, programs, and downloads flying through it as they change location, and you can grab files to change direction. Smaller tunnels break off from the main tunnel - those are folders - and on the walls of the folder tunnels are all the files. Security programs... are tricky. Sometimes they're robotic drones that'll chase or shoot at hackers, and some appear as walls, waves, or other some such. If they shoot or touch us, we can be trapped, physically hurt, killed, or have our minds erased, but I don't think they'll have anything really dangerous on a test run," He looked a little more nervous now, "With weak programs, you can usually delete them pretty easy, but the ones used by actual corporations can only be disabled. Stealth is key, because in a well designed system, alerting one security drone will set off every bot in that side of the loop."