Google has announced
 the addition of a new section within Webmaster Tools named “Security 
Issues.”  This new section is aimed at better communicating to website 
owners security issues, such as site hacks, malware, and so on and then 
giving a more detailed and concise method of fixing the problem and 
submitting a review request.
In the new security issues section, you’ll be able to:
- Find more information about the security issues on your site, in one place.
- Pinpoint the problem faster with detailed code snippets.
- Request review for all issues in one go through the new simpified process.
Find More Information:
You’ll be able to see all sorts of security issues that may be on 
your site, including malware code injection, error template injection, 
SQL injection, content injection for spam and much more.
Pinpoint The Security Threat:
Google will then let you zoom into the actual hack or malware, so you
 can quickly scan your site for a match on that suspicious snippet of 
code or content.
Content Source: Search Engine Land
