As I type these words, there is an on-going and highly-distributed, global attack on WordPress installations across virtually every web host in existence. This attack is well organized and again very, very distributed; we have seen over 90,000 IP addresses involved in this attack.
HostGator Blog – Global WordPress Force Flood
Go and read the post above and then take action. I had installed Better WP Security about 3-4 weeks ago and forgotten about it. After reading that article, I decided to double-check my setting, improved on some stuff and checked the logs. To my surprise, I found out that I had 9222 404 errors! Apparently that is the way bad boys search for vulnerabilities and ways to break in.
If your blog is not secured or you suspect you may want to beef it up, do give Better WP Security a try. It install easy and the settings are explained. If you find it complicated or you are unsure, find something else, but get your blog secured.