So, as I understand it, the view seems to be you should at least take 'common sense precautions' (such as suggested by the OP), but even with those security measures in place, if a competent hacker wants to gain control of your site one way or another, they probably will eventually.
If which, shouldn't we have a 'plan B'? For example, I heard there are programs out there that can monitor and notify when the pages on a specified website change. Wouldn't something like that be a useful addition to the defenses? You know, the sort of program that will notify a link on your computer (or via email) if / when your WP pages have been altered. I'm new to this area, so please forgive the ignorance.
What I'm wondering is, would such a website-monitoring program pick up that the site's been hacked and altered? A bit like a silent alarm to a security center, as it were. If such a program can indeed do that, can anyone recommend a good one that they've used?