We leave ours out on the table in full view, plugged in, up and running. Never had a problem.
Most everything is backed up and since we take DHs work laptop, anyone would have a heck of time getting past all the security. Even my hacker BIL can't get into without a lot of work--days worth. For us though, if it was stolen, DH's company would have another for him the next day. We found that out the night he forgot & left it in the car and it was stolen because he forgot to lock the doors. They want him to stay productive.