Security escutcheons The security escutcheon is the vital complement to any good security lock, since the cylinder is one of the preferred attack points and therefore must be well protected. TESA presents an exhaustive range of escutcheons that provide the solution to any need. E700 security escutcheonE700 Security Shield E800 security escutcheonE800 high security shield E300L security escutcheonE300L Security Shield E700L security escutcheonE700L Security Shield