108
Maybe I am paranoid, but this is what I would do.
Backup your database & your site.
Then I suggest you create a new admin/webmaster account with
a different password and delete the old admin account.
Backup the database a second time.
Then I would also change the MySQL username and password and
alter my XOOPS install to use the new combination. (You
cold even clone the database over into one with a new name
as well). I believe the database connection information is
stored in mainfile.php, but it may be somewhere else too,
perhaps one of the developers can give more info on this.
Last, make sure your session time isn't set for very long
and make sure you choose logout each time so that the
webmaster session is terminated and not left open.
If something goes wrong, you have a backup of your site and
two of your database to revert to.