Adam also said:
Both of these pages seem useful:
Looking at the second one, Limit Login Attempts really should be part of
the core WP codebase, and I install it on everything even after finding
out about the neat Fail2Ban jail (people might move their sites
somewhere that doesn't do it...)
Given the use of that, or similar - there's another plugin which also
checks user's passwords against various lists - I would be very
interested to know how useful BWPS and WF actually are. If someone can
login with admin rights, you're stuffed. If they can't, and the site is
set up properly, what can they do?
BWPS makes a big fuss about changing the database prefix for example.
But if someone has access to the database, you're stuffed regardless.
Ian