The best protection a wall safe provides is concealment, however, most burglars are going to look for a wall safe and if found will not take long to penetrate or remove the safe from the wall with common hand tools or a pry bar. The wall safe is installed within the wall and attached to the wall studs.  Wall safes are usually not a good place to store expensive contents, however, may be considered because of its quick access to keep limited amounts of cash and personal items from children.  They are not designed to provide protection from fire.