This is an old post, but cre8d design explains how to password protect your blog. The simplest way is the registered only plugin. With this plugin, only registered users can actually see your blog.
Password protect WordPress
May 12th, 2008 · No Comments · Geek
Tags: Com Blog·Password Protect·Wordpress Blog
Comment Spam
March 6th, 2008 · No Comments · Wordpress
Well, this affliction is terrible. Even in the last two days, I’ve had one good comment and the spammers found the new WordPress blog and started spamming it. WordPress like MovableType doesn’t have much protection. Here is what I did and you should too:
Registration. Require user registration before a comment goes in.
Kismet. This does come [...]