A couple of days ago, one of my friend send MSN message to find some help. His friends’ web has been blocked by Google because of Trojan Horse. It seems that many webmaster or developer still not aware about the importance of security and how easy it is for a hacker to use SQL Injection:
What I recommend to avoid SQL Injection is to use “Parameterized Statements” for any of your SQL statement. And after clean up all data and codes, you have to go to Google Webmaster Tools to request reconsideration.