+" Disallow :autocmd, shell and write commands in .vimrc and .exrc files in the
+" current directory. Only used if 'exrc' is enabled (off by default),
+" precaution just in case somebody enables 'exrc'.
+set secure
+
+" Try to use pipes instead of temporary files. Prevents some auto commands
+" from running for temporary files but also prevents the file's content to be
+" written to disk.
+set noshelltemp
+