Stay in roughly 30+ campgrounds (private/public/parks etc.) each year for the past 6 yrs. all over the USA.
Everything we own is with us.
Security......HA! we live in a box that has cheap doors & locks. That is a fact and I've never considered putting a $50 lock on a $2 door.
Important papers have been digitized and stored/backed up.
Copies have been made and left with family
Everything else of value in rig is covered via insurance.
There is not a rv compartment door, entry door or bolted in safe that I couldn't get into with small hammer, flat blade screw driver or pry bar.
The lock may hold but that door, door frame, subfloor etc. won't hold up.
That is just reality when dealing with rvs.
I don't worry over some one breaking in to the rv any more than I worried about break-ins when we had a S&B.