It's recommended to chmod the following linux binaries to 750 to prevent non-privileged users from execting those commands and gain control of your server.
chmod 750 /usr/bin/rcp
chmod 750 /usr/bin/wget
chmod 750 /usr/bin/lynx
chmod 750 /usr/bin/scp
chmod 750 /usr/bin/find
chmod 750 /bin/netstat
chmod 750 /usr/bin/lsattr