I'd like to hear from you which is the best security plugin to use in combination with MM, and if there is any particular setting I should be aware of.
We don't currently have particular recommendations for security plugins. We see MM customers successfully using a variety of security plugins, and your best bet is just to research what would be best for you and test it out in your environment.
One thing to note is that some security plugins include caching settings, so if these are included, be sure to configure them correctly:
It is FUNNY to hear this answer from Membermouse itself. Since ALL plugins work different and SECURITY is a Concern for ALL WP users, membermouse should have an UPDATED LIST of WP security plugins that can work without causing problems to the website.
I tried installing All In One WP Security and it creates problems when trying to login as a member or admin. Anyway it looks like mm is all about find your own answers.