AIX 6 includes the File Permission Manager (fpm) command to help in system hardening by removing unnecessary SUID and SGID file permissions from roughly 270 root user commands. Particularly, useful for servers that don't allow regular UNIX users. This makes it much harder for "hackers" to gain root user access from a regular user account. You can also manage your own application SUID programs or further reduce the number of system SUID programs. The fpm command also appears in recent levels of AIX 5.3.