neowolf writes "I work for a company that does trade shows around the country. We were using expensive and spotty WiFi access at convention centers for our business needs and to provide our customers with some laptops they could use to access the Internet while at our shows. Management recently decided to try using wireless broadband USB modems from our cellular carrier instead. What they didn't consider is security for these devices. We leave laptops out in what is essentially a public place. We lock up the laptops already, and aside from having a couple of power supplies "walk away", haven't had any other theft problems. The problem now is- we have small USB cellular modems sitting in them. There isn't any way to lock them in the USB slots (gluing them is not really an option as they are fragile and the laptops get shipped from show to show). I wanted to use USB extension cables and lock them away in a locking plastic case (like a Pelican case), but their smallest locking case is huge for such a small device. All of the self-adhesive or glue-on security locks I can find are metal, and I'm afraid they would interfere with the signal. Has anyone else tried to secure these things in a public environment? Any other ideas?"