If you are a webmaster, you'll surely know about SQL injection hack trick. However this trick is only possible in vulnerable sites. Generally black hackers use Google to find out vulnerable sites and unfortunately if that site has high traffic or more files then, by no chance to get back from those intelligent hackers. So it is always recommended webmaster to change the script for every period of time. As old scripts became familiar to hackers and easily they will acquire your site. Hmmm.. Here is a 1600 vulnerable sites that can be easily hack by SQL INJECTION technique. I never encourage peoples to hack the sites given below but you should get knowledge about the possibilities of hacking.. Hope it'll be Usefull for you!
Download 1600 mysql vulnerable sites.txt