Limit Attempts Booster is a wordpress plugin which provides high security and limits your wordpress access. It also safes from brute force attacks.
Limit rate of login attempts and block IP temporarily (Up to 10 minutes). It is protecting from brute force attacks.
The plugin Limit Attempts allows you to limit rate of login attempts by the ip, and create whitelist and blacklist.
Spam Master is the Ultimate Spam Protection plugin that blocks new user registrations and post comments with Real Time anti-spam lists.
The most advanced protection against sploggers and spam users registration, is fully WordPress,WordPress MU ,BuddyPress and bbPress 2.0 compatible
To block users from admin side except admin users for specific day,time, and date or permanently.
Allow members of the forum to selectively have a user's posts and topics hidden from view.