With increasing numbers of Wikipedia user accounts, a significant number of
users will have trivial passwords. This can and has been exploited by vandals.
To prevent this, passwords should be subjected to checking by at least a simple
password checker/cracker before being allowed to be set by a user, to prevent
them from using (for example) a common dictionary word, or a common string like
"123456" or "qwerty".
Many suitable free software password checkers exist, including pam_passwdqc and