Google Webmaster Central Blog published Quick security checklist for webmasters. They encourage webmasters to “please try the following at home,” this is by no means an exhaustive list for your website’s security. The list is useful, but they recommend that you conduct more thorough research as well.
Nathan Johns said
“In recent months, there’s been a noticeable increase in the number of compromised websites around the web. One explanation is that people are resorting to hacking sites in order to distribute malware or attempt to spam search results. Regardless of the reason, it’s a great time for all of us to review helpful webmaster security tips.”
Requirements: No Requirements