This is very critical problem, as manytime webmaster lost all the data and information of the site. This also effects the SEO of the site, as they lost the traffic, page rank and some time have the bad review on the search engines also.
For this problem Google is helping to the all these webmaster and a web admin to prevent this. This is simply by the Google Guidance and tools that Google is providing for free.
As Google webmaster tool helps a lot to the webmaster and a blogger a lot, additionally they are going to help to the all the webmaster to prevent them of Hack.
Some time you see that some site gives warning of the "Malware Ahead" by the Google, so these are the site that have bad impacts on the Google search engine. This leads to the lose of the reputation of the site and also of Traffic of the site.
How Google is Helping to Prevent the hack
In this Google have described the steps by the written post and also with the helpful videos.
Here Google tell about the Steps to be taken by the webmaster to prevent the hack and what to do if they got hacked or got spam on the search engine.
Video 2:- Build a Support Team
Video 3:- Quarantine your site
Video 4:- Touch base with Webmaster Tools
So if haven't signup for the Webmaster account then get it now. It is very simple to get the account. Just go to Webmaster tools link and signed up. I have already post the about the Ownership verification. Google will give a mail to your google mail account also.
Video 5:- Assess the damage infected by (Malware or Spam)
Google have divided this step in Two category as per the attacker attacked the site.
1) By Spam
2) By Malware
This it says to make the list of the pages, files and links that were infected. As we know that many of you didn't know this how to do, for this also Google is going to help. Know the intent that the hacker have spammed or infected the site. For the further details in this Topic visit here.
Video 6:- Identify the vulnerability
Video 7:- Clean and maintain your site
Video 8:- Request a review
As shown in the picture below
This will effect the SEO of the site and a traffic too. So to fixed this issue, last steps have to be done by a webmaster is to get review by the Google search engine. In This Video Google tells about how to get review by the Google after the fixed of the above issues.
Again verify the ownership of the blog/ site, and get the review by the Google search Engine, to make the good reputation on the search engine. get your clean site back online.