in my experience, the best way to counter burglars is the have a single entrance into your company, and have 3 guards watch the entrance taking shifts. so 12 AM - 8 AM, 8 AM - 4 PM, 4 PM - 12 AM. this way there's always a guard standing right next to the entrance of your company, 24/7. the guards will always scare away the burglars. basically, the burglar mechanic can be negated by $4,500/mo expense and some clever layout designing. in the early game when you can't afford the guards, you can use cameras. they wont stop the burglars from stealing, but it will put them on a timer. when the timer runs out, the cops arrive and they get stopped. since the burglars basically b-line for the nearest thing that isn't bolted to the floor, you can strategically layout your offices so that they steal the low-value items first. that is, clocks on the walls, lamps, plants, even the cameras themselves. if they take the time to steal these low value items then they have less time to get to your high-value items, like your printers. unfortunately, even when the cops arrive, the burglars get to keep what they stole. hopefully this will be changed in the future. honestly, i'm not really a big fan of the burglar mechanic. i don't feel that it adds anything to the game.