When stopping to take a break, park in a well lit area, near the door of the establishment or near security cameras. If possible, back your vehicle against a wall or fence so the trailer's doors are difficult to access.
Make sure that your truck's windows are rolled up and the doors are locked. Don't leave anything of value such as a tablet, laptop or wallet in plain sight, take your cell phone with you.
When outside, walk where others can easily and clearly see you and avoid walking between two trucks (especially at night). Walk with a purpose and always be aware of your surroundings.
Avoid people who seem interested in your cargo. Never share information about your load, pick-up and delivery schedules or routing. This includes talking about these details on your cell phone. If you need to discuss this with your dispatcher or the receiver, make sure that you do this while inside your truck or when no one else is around to hear your conversation. Do make sure you establish check-in times with your dispatcher and family members.