For security reasons, it is safe to disable the root account. Removing the account might not be a good idea at first, instead we simply need to disable it.
passwd --help | grep lock
-l, --lock lock the password of the named account
-u, --unlock unlock the password of the named account
To disable the root account, simply use the -l option:
sudo passwd -l root
If for some valid reason you need to re-enable the account, simply use the -u option:
