Official Google answer: I just visited your blog. I noticed it was built with WordPress. How do you keep it safe from hackers?

Question:

I just visited your blog. I noticed it was built with WordPress. How do you keep it safe from hackers? Ever since I got PR 5 last month - I've got dozens of hack attempts a minute.

Google's Matt Cutts answers:

Summary of the answer:

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Question	Views
My SEO client is using shared hosting for one of their websites. When I checked other sites hosted on their server, I found some spammy websites. Will that affect ranking of my client's website?	974
Does the new canonicalization tag make it safe to add tracking arguments to some of my internal links without fear that Google will split the quality signals between the two addresses?	719
Can you verify that Google is putting more weight on "brands" in search engine rankings?	2,118
We are changing a fairly large HTML site to CMS. What are the essentials to keep in mind so that we do not lose our search rankings?	754
I have a client who was hacked. The SEO consultant said things were cleaned up, but they weren't correctly. All 30,000 viagra/cialis type and paid links have been removed, but no improvement in SERPs. We send reconsideration. What do we do now?	998
On your WordPress.org blog, (mattcutts.com), why did you switch from domainname.com/year/month/day/sample-post/ to domainname.com/postname/?	900
Do tag clouds help or hinder SEO?	1,156
Are you ever going to do 'weather reports' like Yahoo! does algorithm updates?	756
Site hacks have been on the rise, especially in CMS platforms like Joomla and WordPress. If our site was hacked and damage was done by the hackers (doorway pages inserted and spammed) but removed within days do we have to worry about a penalty?	809
We are a pretty big site. We are changing our hosting company in the next few weeks (same country). Should we be scared from an SEO perspective?	939

Question

Views

My SEO client is using shared hosting for one of their websites. When I checked other sites hosted on their server, I found some spammy websites. Will that affect ranking of my client's website?

974

Does the new canonicalization tag make it safe to add tracking arguments to some of my internal links without fear that Google will split the quality signals between the two addresses?

719

Can you verify that Google is putting more weight on "brands" in search engine rankings?

2,118

We are changing a fairly large HTML site to CMS. What are the essentials to keep in mind so that we do not lose our search rankings?

754

I have a client who was hacked. The SEO consultant said things were cleaned up, but they weren't correctly. All 30,000 viagra/cialis type and paid links have been removed, but no improvement in SERPs. We send reconsideration. What do we do now?

998