Reddit mentions of Ziotek ZT1320380 CPU Security Lock for Desktop Computer Chassis

Chassis lock: This lock replaces the thumb screws making it harder for someone to open the side panel. It comes 1 per pack, so buy 4 if you can.

Padlock + [Security Cable](http://www.amazon.com/Master-Lock-72DPF-Braided-Diameter/dp/B000BD8IQ4/ref=sr_1_2?ie=UTF8&qid=1408303692&sr=8-2&keywords=security+cable) + Drill: This depends on the case. I have the r4 and was able to drill a hole in the back. I tied my PC to my bed frame. Here's what mine look like on a R4

Lastly a Kensington lock for the monitor.

also these
http://www.amazon.com/Ziotek-ZT1320380-Security-Desktop-Computer/dp/B000BSHJKA/ref=sr_1_3?s=pc&ie=UTF8&qid=1376339076&sr=1-3&keywords=desktop+lock

Can try something like this

or this

Nothing will stop people from stealing your shit if they really want it, but you can prevent people from snooping around and removing parts.

While I hate to vilify college dorms, bad things CAN happen.... that doesn't mean they will. I had a pretty shitty roommate (dealt drugs, never locked the door, had randos over all the time, was from Oregon, etc) my freshman year and the only thing that ever happened was that he caused me to have to pay to replace a closet curtain when we moved out at the end of the year.

I lived in a wing that didn't have a lot of Computer Science majors, and pretty much everyone in that wing knew that myself and 2 other guys were the "tech" guys. Nothing bad ever happened to our computers and we usually helped other people with theirs. That said, we also weren't boasting about what we had in our machines... so as long as your PC doesn't LOOK expensive or incredibly special you'll likely be fine... people who are going to steal your ish are probably looking more for a quick easy grab like a tablet or something... something that they KNOW the worth of (or at least know it'll be worth the trouble, maybe not the exact cost).

After freshman year you'll likely be fine. You'll make friends and group up with people for your coming years. So just don't pick someone who does shady shit to room with after freshman year and you'll be good to go.

Replace the thumb screws with a locking screw (or a real screw, but it's less safe). And make sure all of your components are screwed in if possible. You can even use some obscure screw type like the T8 (and if you can find it, with pins).

I would second the cable lock as well. If you are able, bolt the thing down under your desk or behind it (if the cable lock wouldn't work). I even once saw a guy use a bike u-lock and attached it to his bed frame.

Source: Was an RA and Head Resident for 2 years.